The procedure for connecting the radio. Sony car radio connection diagram and adjustment

The Sony car radio connection diagram implies the correctness of actions, knowledge of the purpose of the connectors, and much more. This article will tell you how to install and connect the car radios of this company. Sony car radios and a connector wiring diagram are all that is needed for the competent process.

Connection

First of all, connectors or connectors are important components when connecting. They can be of individual properties or ISO, that is, made according to the international standard.
The differences between them are as follows:

If the connectors (see) are individual, then you need to select an ISO adapter for them or cut the wires, and then connect them to the individual connector block according to the diagram.

Note. On the other hand, cutting wires and making connections in the manner described above is highly discouraged. It will be better to use shrink sleeves and other precautions.

As for the ISO connectors, they are much more convenient. If the Sony car radio is endowed with them, then connecting it will be a matter of minutes.

wires

Correctly picking up the positive wire is also very important. If connected directly from the battery, a fuse is required. In this case, the diameter of the wiring is also extremely important, which should not be smaller than the head unit connector.

Note. In extreme cases, the car radio is also connected through the cigarette lighter.

To reduce energy leakage from the battery, the connection is carried out according to the following scheme:
In this case:

The black cable coming from the battery is ground;
Yellow cable coming from the battery - power or positive for 12 V;
The red cable is responsible for the signal to turn on the head unit from ZZ *;
Finally, the blue wire is the antenna or other devices.

Note. As for the diodes, you can install any type of KD522B.

* ЗЗ - ignition lock

The wires when connecting the car radio should be arranged according to the following scheme:

The yellow power wire is always responsible for powering the head unit, its memory. First of all, it must be submitted as a plus;
The red wire is also power, but it disables the operation of the head unit. It also needs to be submitted.

Note. The instruction says that the red wire must be connected through the ignition switch so that the head unit turns off after the ignition key is turned.

Positive wires are often connected together. They are twisted and connected to direct current, but this is not recommended.
The fact is that in this case the head unit will work constantly, regardless of whether the key is turned in the ignition or not. In turn, this threatens to de-energize the battery in a matter of time, especially when the car is stationary.

If the Sony car radio is connected to VAZ models, then the process can be carried out as follows:

Connect the red wire not to the ignition lock, but to the 5th pin of the BSK block.

This scheme is original, but has drawbacks. So, if a passenger remains in the car for a while, then you have to leave the ignition key with him so that he listens to music. In addition, such a scheme consumes much more electricity.

Three Connection Scenarios

So, it often happens that the Sony car radio is connected “without a key”. In other words, the connection was made directly from the battery, without the ACC wire.
In addition, the confusion of wires in the circuit can lead to a situation where one of the front speakers and one of the rear speakers is playing. This is how it all gets fixed.
Removing the radio:

The mass is thrown off the battery so that while digging in the wiring it is not accidentally short-circuited;
The insert on the center panel box is pulled back and pulled up from the front;
The screws located above the climate control console are turned out (at least, this is how it is on many foreign cars sedans);
The ashtray is removed;
The front panel of the Sony car radio is removed from the mounts, and then removed to the side;
4 screws fixing the central blocks are turned out;
The car radio is removed.
Behind the radio there are a bunch of wires that need to be studied according to the connection diagram of the GU with ACC (see above);

Wiring

In addition, it is necessary to study which wire goes where;

If this wiring diagram is to be believed, swapping the green and white wires is enough to fix the speaker problem;
The photo below shows that the small chip on the left is responsible for the rear acoustics, and the large chip with 8 wires (on the right) is for power and front;

It is also necessary to pay attention to the fact that the radio is connected with 2 wires to the plus: one of the wires is yellow and the other is red. They are connected together and connected to direct current, bypassing the ignition switch, as here;

Note. As a rule, the black wire is responsible for the ground, brown or yellow - for constant power, pink with a blue stripe - for power from the lock. The rest of the wires go to the front speakers.

The red wire breaks, and the insulation from the wire with the blue stripe is unscrewed. The two wires are twisted together and insulated;
All wires are wound back. Do not forget to swap the white and green wires going to the speakers;
The GU is connected and everything is checked as follows: if the key is in the lock in position 1, the radio is turned off, if the lock key is in the ACC position, the radio is on.

Note. Cut the wires with heat shrink. During this operation, you can adjust the control panel at the same time on the woofer from behind. It will be enough to pull out the cup holder, and run the wire to the subwoofer under it. That's all there is to it.

Now, dear reader, you know what all the subtleties of connecting a radio tape recorder mean, at least theoretically. As for practice, there is no need to rush to start it until a video review of the topic has been viewed, schemes and photo materials have been studied in detail.
When working with your own hands, you must not forget that the wires must be well insulated. Self-adjustment of problems and the ability to connect a car radio is a valuable thing.
Now you can save on the costs that are inevitable when calling a specialist, the price of whose services is sometimes bewildering to most Russians.

It's no secret that in the radio, in addition to the positive yellow and negative black power wires, there is also a red ACC wire. Roughly speaking, this is the REM control wire for the radio and performs exactly the same function as REM on amplifiers.

For those who are not at all in the subject, then the radio, as conceived by the manufacturer, must be constantly connected to the battery and be energized. The ACC wire is a low current control circuit that activates and starts the radio. As long as there is no +12 volts on the ACC wire, the radio tape recorder will not react to anything, respectively, and the current consumption of the radio tape recorder will be measured in tens of milliamps.

When voltage appears on this wire, the radio either starts automatically (if it was turned off by de-energizing this very ACC), or goes into standby mode (if the radio was turned off by the button on the panel or by remote control).

The main question is that even if the radio tape recorder is turned off, but the ACC wire is energized, then the current consumption of the radio tape recorder increases by a factor of 10 and will already be tenths of an ampere. and this is not so little, especially if your generator is junk, and the battery has long been tired.

Based on the foregoing, it becomes clear that you need to figure out how to properly connect the radio and how not to.

First, consider the 2 most stupid and, accordingly, the most common options for connecting the radio. They appeared, probably, along with the radio tape recorders themselves as a result of the general unwillingness of garage installers to read instructions for pieces of iron.

Option number 1

It's called "I screwed it up quickly, I'm not going to the competition."

The cigarette lighter circuit is not designed for such bonus loads and during the operation of the radio tape recorder, the voltage drops significantly. Collective farm, in short.

Option number 2

It's called "So that the mafon goes out when I leave."

The ACC ignition wire is even less happy with such a load than the cigarette lighter and the drawdowns will be even greater than in the number one option.

Owners of the first two connection options are very easy to meet on all car audio and related resources. They all have the same questions:

“Why doesn’t the car start in the morning after installing the mafon?”

“Why does the radio screen blink and does it turn off if turned on all the way?”

“Why do the radio settings go astray when turned off?”

All these problems are the results of the owner's curvature and his conviction that he is smarter than those who wrote instructions for the GU.

The above options are NOT CORRECT and it is IMPOSSIBLE to connect like this.

The radio tape recorder in such a connection CANNOT function fully and normally, even if it seems to you otherwise.

Now consider the options for properly connecting the radio in the car. It is most logical to start with the connection option, which is described in all instructions for the radio.

This option completely repeats the control of regular radios in foreign cars. A simple, reinforced concrete reliable option, though without the beginnings of convenience. When using this option, it is enough to find in the car the power wire going from the battery to the fuse box and cut it into it through a separate pre-yellow power supply wire.

This new fuse can be placed both in the free space of the pre-block and next to it in a separate holder. This is creativity.

The red ACC wire is connected to the ACC wire of the ignition switch. Thus, when the key is turned, the radio will start, and when the ignition is turned off, it will turn off. If you turn off the radio with the button, then it will be silent regardless of the turn of the key and wait for manual start.

The disadvantage of this option is the inability to turn on the radio on a muffled car. This nuance can be considered a retribution for the ease of connection.

This trouble is cured by the following option:

As you can see in the diagram, this is almost the previous version, but the blue REM wire of the radio and a pair of diodes are already involved.

For those who are not in the subject, I will explain: A diode is such a part that passes electric current in only one direction. If we allow a light bulb to be connected to the battery through a diode, then at one polarity the light will burn, and if the polarity is changed, the light will go out.

The explanation is very rough, there are a lot of nuances, but all the subtleties didn’t fall to us. It's enough)

Any small-sized diodes capable of operating with a voltage of 15 volts or more and a current of up to 0.1 amperes are suitable for the circuit.

In the diagram, diodes are indicated as an arrow with a dash. The arrow indicates in which direction the diode will pass current. On the diode itself, the nose of the arrow is tinted with a strip, or an arrow is drawn directly on the diode. On the diagram, next to the diode symbol, I added pictures of diodes with the location corresponding to the diagram for convenience.

A few words about how the circuit works:

When the key is turned in the lock, current will flow from the lock through the diode to the ACC contact of the radio. Accordingly, it will start and apply voltage to its REM wire, with which we usually control amplifiers. With the REM wire, the current will flow through the second diode again to the ACC contact of the radio.

Thus, the radio tape recorder will support itself in the on state and it will no longer matter if there is voltage from the ignition switch or not. The diodes in the circuit serve to prevent current from flowing from the lock to the REM contact and from the REM to the lock.

This scheme will already allow you to listen to the radio with a muffled engine. It will be enough just to start it with the turned key. The disadvantage of such a connection is that you can simply forget the radio is turned on and it will gobble up the battery. Well, the radio will not be able to start automatically when the key is turned. Every time you have to poke her with your hands.

The following three schemes are different variations of the same idea. In all three schemes, we use the central locking alarm control unit.

This circuit also practically repeats the previous one, with the only difference being that we inserted normally closed relay contacts into the REM wire break.

In five-pin automotive relays, the middle contact will always be closed while the relay winding is not energized. As soon as the relay clicks, this contact breaks and opens the circuit in which it stands. In our case, a relay that turns on even for a short period will turn off the radio. After such a shutdown, the radio will automatically start and continue to work as soon as you turn the ignition key. In this case, the key can be pulled out and the mafon will continue to work either until it is manually turned off or until the car is armed.

In the alarm unit, you will need to find a chip with the outputs of the central locking control relay and determine on which of them, when the car is armed, a voltage of +12 volts appears for a short time. Well, accordingly, connect one contact of the relay winding to this wire and the second to the negative wire of the alarm power supply.

The scheme is fully functional. The only negative is that some radios, when turned off, keep the voltage on the rem wire for a moment, and if the signal to the central locking signal is too fast, then the radio will immediately start up again. If the central locking of your car allows you to receive longer closing impulses, then many alarms allow you to increase the time of the impulses by programming the alarm. To do this, in principle, is not difficult for anyone who thoughtfully reads the manual for the signaling.

If the alarm does not allow you to increase the impulse, or this is not desirable for the operation of the central locking auto, then the following two schemes will suit you. The principle of their work is identical, only the implementation differs.

There is no need to use REM wire in this circuit. The scheme works as follows:

When the key is turned, voltage is supplied from the ACC wire of the lock to the relay winding, which accordingly turns on, connecting to the power circuit of the yellow wire + 12V of the radio (which, as we remember, is always energized, regardless of the PG operating mode). From this moment, the relay begins to feed itself through the second diode and also feed the ACC wire of the radio, starting it. From this point on, the system is indifferent to the position of the key in the ignition.

The radio will continue to work, and the diodes will not allow the current to go where it is not needed. The second contact of the relay winding in this circuit is not connected directly to the minus, but goes to the alarm unit. Most signaling units have engine blocking control outputs. This control is carried out by interrupting the minus circuit. Let's say a fuel pump blocking relay is installed. the plus from this relay is connected to the ignition lock and the minus just to this wire of the negative lock control.

Accordingly, the pump will be blocked either by interrupting the plus using a key, or by interrupting the minus using an alarm. Here we are completely satisfied with this mode of operation of this contact and we hang the minus of our relay on this output of the alarm unit.

Thus, when arming the car, the alarm will turn off the minus of our relay, it will turn off and turn off the radio. When disarming, the minus will reappear, but the system will wait for the key to be turned to start.

This option, in my opinion, is the most successful of all listed. has no shortcomings. The radio turns itself on when needed and turns itself off when needed. In addition, it is very convenient to turn off the radio remotely, say in nature. It is enough to turn on and off the alarm on the car from the key fob.

Well, the last option is a variation of the symbiosis of the previous two, but without diodes.

Here, when the key is turned, the relay will start and self-power, launching the radio along the way. When arming, the second relay will break the self-feeding of the relay and the system will turn off.

The capacitor in the circuit of the first relay is needed so that the relay can cock without external voltage. When the relay is started, the contact will come off from one side and it needs time to fly to the second to be powered from it. During this moment, the relay will be powered by a capacitor, which will have time to charge when the key is turned. Without a capacitor, you will only hear TRRRRRRRRR from the relay and the system will not work))) For this circuit, a capacitor of 1000 microfarads 16 volts is enough.

These are the variants for every taste and color)) Choose what you like. From myself I can only advise you not to rush and figure out how to implement the chosen option. There is nothing terrible in any of them, even from a person far from radio engineering. It's easy enough to get in and out.

Well, the most important thing is not to rush into this matter.

Now, as promised, a couple of words, for those who bought a radio tape recorder and were going to check it “quickly”.

Oddly enough, but when checking for a quick one, the most important thing is not to rush))) According to statistics, 50% of the equipment dies during the check and the first connection.

Any possibility of short circuiting any wires should be avoided before checking the equipment. This is especially important when checking the control unit of radio tape recorders, from which a broom of stripped and disheveled wires sticks out. Do not be lazy and isolate with electrical tape all the wires that are not needed for testing and all the twists that you made. Even if you "laid everything separately" and "I did this a hundred times and it's okay."

There is always a place for chance and there is always a risk that something will fall or slip and instead of a new nishtyak you will instantly get smoking scrap metal. As practice shows, such a case is not at all a paranoid fantasy. Only in my memory, several mafon amplifiers and subwoofers died in people just because something jumped off or came off during the check.

Hence, by the way, the second point. If you need to make a twist to check, then do it thoughtfully and firmly. It’s better to twist it later, spinning it, but so that it does not fall apart when everything is energized.

The third point and rule: check the correct connection and polarity of the power supply three times!

Even if you have already checked everything and everything is OK, just before connecting, look through everything again. Very often, just at the last check, a connection jamb is revealed that could kill the piece of iron in just a moment.

Well, and another tip: to check the equipment, choose a flat, spacious place with easy access for you.

Do not check the pieces of iron with cancer hanging in the trunk and sorting through the snake ball of the collective farm installation. Do not test equipment on a workbench littered with junk. There have been instances of damage to the equipment by moving or falling junk heaped on the surface that you chose to test.

Do not neglect these simple and not cunning troubles. They are guaranteed to save you time, money and nerves.

The radio tape recorder is an indispensable attribute of any modern car. As a rule, more functional equipment is bought instead of a regular device. In any case, the radio must be connected correctly. Note that there are several options for solving the problem. In this article, we will list the main methods for connecting a car radio.

Almost all devices of this type today are equipped with a universal connector, thanks to which even a novice motorist can handle the connection. There are also various adapters on sale that can simplify the task. Another option is to connect the wires according to the color scheme (usually it comes with the radio).

Connecting to the battery

Many motorists tend to connect the radio to the battery directly. In this case, you can provide the device with optimal power. It will also allow you to listen to music without having to turn on the ignition or a special button (we will discuss these methods below).

Power is supplied through three main wires - yellow, red and black.

red wire- positive, connects to the positive terminal of the battery;
yellow wire- positive, connected to the positive terminal of the battery through a fuse (10-20 A), is responsible for powering the radio settings memory;
black wire- ground, connected in any convenient place to the car body or connected to another similar cable.

Important! Don't forget the fuse to avoid short circuits.

The disadvantage of directly connecting the radio from the battery is that during idle time, the radio very often consumes energy (especially Chinese products of little-known brands). As a result, one day the engine of your car may simply not start due to a dead battery. That is why we advise you to connect using one of the methods below.

The best options for connecting a car radio:

through the ignition lock;
through the button
through the alarm system.

Egnition lock

To solve the problem with the possible discharge of the battery during long periods of inactivity, most car owners connect the radio to the ignition switch. It is necessary to find the wire that feeds the contact group of the ignition switch and screw (solder) the red wire from the radio to it. In this case, the yellow wire is connected to the positive terminal of the battery (so that the settings are always stored in memory). Black wire - to ground, as usual. It will no longer be possible to listen to music with the ignition off.

Separate button

One of the most suitable connection options is the output of a separate button that will turn off / on the power of the car radio. In this case, the red wire must be soldered not to the ignition switch wire, but to one of the button outputs. The second output of the button is connected to the battery. In fact, you yourself will be able to control the power supply. Before overnight parking, you just need to press a button. You will no longer depend on the position of the key in the ignition.

The option of connecting through an alarm system also has the right to exist. The bottom line is to use contact relays and a diode. This scheme is not very common, so we will not dwell on it in detail.

conclusions

The sound system in the car is necessary, because it makes the trip much more comfortable. We examined the most popular options for connecting the radio to a car battery. Which one to choose is up to you. In any case, we note that everything must be done carefully, because we are talking about an electrical circuit. You should not neglect the safety rules, since a short circuit is not the most pleasant phenomenon that can have very sad consequences.

When connecting the car radio, remember that the positive wire must be connected with a high-quality wire directly to the battery using an additional fuse. This fuse is best placed close to the battery. Many motorists make mistakes at this stage and connect the positive wire of the car radio from the cigarette lighter. It is not right. As a result of such actions, the power of the device drops. This can be seen by the flashing of the backlight while working at high volume. Also, reducing the power leads to earlier distortion of sounds.

The design of the car radio provides for two positive cables of yellow and red colors. The first is power. He is responsible for maintaining the memory of the radio. The second acts as a control wire.

The negative wire is painted black. It connects directly to the vehicle body or to the negative terminal of the battery. The second option is even better, as the likelihood of interference is reduced.

The blue wire (REM) is the control wire and is responsible for turning on the active antenna or car amplifier.

To connect the speakers, paired wires are provided, which have different colors corresponding to a specific speaker:

The white pair is the left front speaker.
The gray pair is the right front speaker.
The green pair is the left rear speaker.
The purple pair is the right rear speaker.

For a better understanding, take a look at this diagram:

In these pairs, one wire is monotonously colored in a certain color, and the second has a black stripe. It is the second wire that is negative.

It is very important to properly connect all speaker wires. As a result of non-compliance with color schemes, it will be very problematic to adjust the balance in the future. If the polarity is not observed, the rear speakers will sound out of phase, which will result in the absence of bass.

There are two schemes for connecting a car radio. They are very similar to each other. They differ only in the way the positive wires are connected:

Simple scheme. Its essence lies in connecting two positive wires to each other and connecting this pair to the plus of the battery. This circuit is suitable for car radios that consume a small amount of electricity in the sleep state. Radios that consume a lot of electricity will drain the battery in a couple of days. For such cases, there is a second connection method.
Connection diagram via button. This option is much better. The power supply of the car radio can be controlled manually and its settings are not lost. You just need to find the right place for the button.

In addition to these basic schemes, there are several more ways to connect a car radio. For example, sometimes it is connected through the ignition switch. But this is not entirely practical, since it will not work without a key in the lock. There is also a connection diagram through the alarm. But it has not found wide distribution.

When installing the radio, the wires should not be cut; in the process, it is better to use ISO connectors and adapters. This will eliminate the hassle of replacing the device.

Wiring diagram for Andrey Serebrekov's car radio

The yellow wire is connected to the 12V power supply, and the red wire is connected to the parking lights.

The 12V voltage of the dimensions is away from the radio, so you need to use a relay. The relay coil is connected to the ashtray bulb connector.

The advantages of such a scheme:

The car radio itself starts working when the side lights are turned on. At the same time, her memory is preserved.
When you turn off the dimensions, the radio tape recorder stops working. This is a huge plus for those people who regularly forget to turn off the lights.
The radio works even without the ignition on.
In the presence of LED bulbs in the dimensions, energy consumption is minimized.

In the following video, you can clearly see how the radio is connected on a VAZ car.

A modern car radio is a GU (head unit), which, in combination with car acoustics, allows you to listen to radio, CDs, connect USB drives, connect various external devices via AUX or Bluetooth, etc.

Installing a radio allows the driver to actively listen to audio content, view video content (subject to a display with such capabilities). Also, functions such as Hands Free can be additionally implemented, which is especially important for the driver. In other words, today it is difficult to imagine a car without a radio.

In this article, we will look at how to connect the radio in the car, what nuances you need to pay attention to, and also how the car radio is connected by wire colors.

Read in this article

Types of car radios, sizes and features

First of all, budget car models may not have a radio. In a number of cases, full-time GUs are available, but they may not satisfy certain requests. For this reason, drivers install a radio or change existing solutions.

As a rule, universal radio tape recorders are in the greatest demand. Such solutions can have a standard size 1 - DIN, when the height is 5 cm and the width is 18 cm. There are also 2 DIN radios, where the height is 10 cm and the width is 18 cm.

It is important to understand that if the radio is being replaced from 1-DIN to 2-DIN or vice versa, you will need to remove or purchase a pocket niche. As for the connection, such radios, regardless of size, have a standard ISO connector (European connector).

If the car is equipped with a head unit from the factory, the size is often non-standard. In such a situation, there are several options for installing the radio. The first is to buy a full-time factory radio (for example, a suitable improved model with extended functionality). The device is suitable in size and can be connected to standard connectors.

The downside is that the cost of high-quality original radio tape recorders is extremely high, and analogue copies do not differ in good sound and reliability. In this case, you can put a high-quality universal radio 1 or 2 DIN instead of the standard one.

However, in most cases, an adapter frame is needed (to hide gaps and holes when switching from a standard size to a universal one). For example, on many Toyota models from the factory, the radio tape recorders have dimensions of 10 by 20 cm, however, installing an adapter frame (spacers for the radio tape recorder) makes it easy to install a 2-DIN or 1-DIN radio (subject to the purchase of a shelf for the radio).

How to connect a car radio

So, having dealt with the types of GU, we will consider connecting a car radio with our own hands. We note right away that the general scheme for connecting the radio will be the same, however, certain difficulties and nuances may also arise on different cars.

In any case, it is important to connect the device without errors, because if the car radio is connected incorrectly, the following is possible:

The radio turns off when the volume level is increased;
After turning off the ignition, the radio settings are lost;
The battery is discharged when the radio is turned off;
Audio signals are highly distorted, especially if the volume is increased by more than 30%.

If the radio is connected correctly, both during its operation and after it is turned off, there should be no signs of deviations from the norm (strong heating, extraneous noise in the speakers of the car's audio system, arbitrary reboots of the device, etc.)

Please note that sometimes it happens that the connection is made correctly, but the device still does not work as it should. In this case, there is a high probability that the GU itself is faulty. In any case, as part of the search for possible problems with the car radio, it will not be superfluous to check the radio connection diagram again, following the instructions.

To understand how to connect the radio in the car, you need to separately study the instructions and the section "connecting the radio". However, it should be borne in mind that there are many types of different cars, the connectors for connecting the radio tape recorder are different, separate wires are not output, etc.

In fact, often when installing a radio, owners are faced with one of the following options:

The car has a chip-connector where power wires, an FM antenna, wiring from speakers, etc. are already connected. In such a situation, it is enough to connect a new radio;
The wiring to the radio is wired and connected, but the connection connector is different from the one needed for connection;
The wiring is completely or partially absent, that is, no wires are connected to the radio, there are no connectors, chips, etc.

We note right away that if there is no wiring, without proper experience it is better to abandon attempts to connect the radio yourself. If we talk about more common cases, the first two options are quite successful.

For example, even if the connector on the radio does not match, you can purchase an adapter. Moreover, manufacturers of radio tape recorders are well aware that the connectors on different cars usually differ from universal ones. For this reason, often a separate ISO adapter connector is immediately bundled with the radio.

In the case when there is no adapter or it also does not fit the existing connector, you can buy a suitable adapter separately or twist the wires yourself. The main thing is to know how to connect the radio in the car.

In the case when the PG is connected independently, you should figure out what the pinout of the radio is, as well as how to twist the wires correctly. In fact, you should make sure that the wires on the radio and the car connector match. If all the colors match, disconnect the terminals from the battery and start the installation.

Wire colors are:

Black wire - battery minus, marked
The battery plus is yellow, marked BAT.
The wire to the "plus" of the ignition switch is red, marked ACC.
The wires of the left front (front) speaker are white, marked FL (negative comes with a strip).
Right front speaker wires are grey, marked FR. The minus has a stripe.
The wires of the left rear speaker are gray, marked RL, minus also with a stripe.
The wires to the rear right speaker are purple, marked RR, minus with a stripe.

Please note, as a rule, experienced specialists avoid twisting, that is, all connections are made using soldering. This means that when connecting the radio, it is better to have a soldering iron in advance. Twisting increases the resistance, which degrades the sound quality, there are losses in volume, etc.

Also, all connections must be properly insulated. The wires themselves must be of high quality. After the wires are connected to the connector, the extra parts need to be “bited off”.

It also happens that individual wires are missing or do not match. In this case, they need to be “ringed” or laid separately. To do this, you need to have a tester - a multimeter, as well as a 9 volt battery.

You need to ring the wires in order to determine the polarity of the pair. When checking the speakers and the wires going to them, the wires are connected to the battery. Next, you need to look at the diffuser (if it extends outward, the polarity is correct, if it is pulled inward, change it to the correct one). All wires should be marked.

We also add that it is not enough to know how to properly connect the car radio. To get a good sounding HU, you need to choose the right wires. It is important that the wires are made of oxygen-free copper and have good insulation.

If there were no power wires to the radio in the car, the yellow and black power wires must have a cross section of at least 2.5 mm (preferably more). Speaker wires and AAC wires of at least 1.2 mm or more.

As a rule, the connection diagram of the radio is quite simple: the black wire goes to the minus of the battery, the yellow to the plus of the battery, the red to the plus of the ignition switch. At the same time, it is optimal to immediately connect the yellow and black wires to the battery in order to get good sound quality. Please note that when connecting directly, it is mandatory to install a fuse (fuse at least 10 A, distance 40 cm).

The red wire is connected to the circuit, which is powered after the driver turns the key in the ignition. If the red and yellow wires are connected to positive, the radio will be able to work without a key in the ignition, but there is a risk of increased discharge of the battery itself.

We also add that radios with increased power can have 4 pairs of wires at once, with each pair being marked separately. Also, when connecting the radio, you can make a mistake in terms of polarity. There is nothing wrong with that, the polarity can be reversed. More serious consequences arise if you make mistakes when connecting ground to minus to ground.

As for acoustics, the speakers in the car often have two terminals, narrow and wide. The connection diagram of such car audio means that the wide terminal is positive, while the narrow terminal is negative.

Finally, we note that before fully snapping the radio into the "mine", you must first make sure that it is fully operational. You should evaluate the sound quality, check how the device works at different volumes, whether all the speakers are sounding, whether there are any obvious noises when the engine is turned off and / or running, etc.

If everything is in order, then you need to lay the wires to avoid creases. After that, you can insert the device into the shaft and snap the radio into place by gently pressing the GU.

What is the result

As you can see, connecting the radio in the car with your own hands is not difficult and can often be done independently. This is especially true if the wiring is already laid or only the connector needs to be replaced.

If it is supposed to lay wires, you need to correctly connect all the wires by color, solder the connections, install fuses, etc. In this case, the owner will receive a properly connected radio and high-quality sound of the GU without unnecessary noise, interference and interference.