Installing an Android radio on Priora 2: a complete guide

The second generation Lada Priora, despite its age, remains a popular car, but the standard audio system often does not meet the modern requirements of drivers. Replacing the head unit with a modern Android radio tape recorder gives access to navigation, multimedia and the Internet right in the car. The replacement process is not a very difficult task, but it requires attention to electrical details and the geometry of the seat.

In this article we will analyze in detail all the stages: from choosing the appropriate model to the final setup steering control. You'll learn how to properly prepare your wiring, avoid common wiring mistakes, and get high-quality sound without interference. The instructions are suitable for most models of 2DIN devices based on the Android operating system.

Choosing a suitable device and preparing tools

Before starting work, you need to make sure that the selected device physically fits in its regular place. For Priora 2, the standard format is 2DIN, which occupies double the height of the slot. Some budget models may have non-standard fastenings, so check the package in advance for the presence of an adapter frame.

You will need a minimum set of tools, which can be found in the garage of most car enthusiasts. The main difficulty is not the fastening itself, but working with the electrical part of the car. Incorrect connection of wires can lead to failure of fuses or even damage to the on-board computer.

• 🔧 A set of screwdrivers (phillips and flat) for dismantling panels.
• ✂️ Stripper or sharp knife for stripping wire insulation.
• 🔌 High quality electrical tape or heat shrink tubing.
• 🔍 Multimeter to check the voltage and polarity of the contacts.

Pay special attention to the selection of the adapter frame. The standard Priora opening may differ from the universal 2DIN standard, so a plastic edging is often required to hide the cracks and give the interior a finished look. Without it, the radio will look alien and may rattle on bumps.

⚠️ Attention: before starting any work with electrical wiring, be sure to remove the negative terminal from the battery. This will prevent an accidental short circuit when the positive wire accidentally touches the metal parts of the body.

Removing the standard radio and preparing the seat

The process of removing the old device begins with carefully dismantling the decorative elements of the center console. On Priora 2, it is necessary to remove the trim around the gearshift lever and the heater control unit to gain access to the fastening elements of the head unit. Proceed carefully so as not to break the plastic clips.

After removing the lining, you will see the radio itself, mounted on a metal case or slide. Disconnect the antenna cable and main ISO connector. If the car has a standard system with buttons on the steering wheel, pay attention to the additional connector, which is responsible for transmitting control signals.

A situation often arises when the new one Android system has different body dimensions. In this case, it may be necessary to modify the metal shaft or use the adapter ears that come with the new radio. Make sure that the device fits tightly and has no play.

If you are planning to install a rear view camera, which is highly recommended for modern systems, then the dismantling stage is the ideal time to lay the cable in the trunk. Laying out the wire later, when everything is assembled, will turn out to be much more difficult and will require a complete disassembly of the interior.

Wire connection diagram and pinout of connectors

The most critical stage is the switching of electrical circuits. A standard ISO connector simplifies the task, but the colors of the wires in the car and on the radio block do not always match. It is necessary to check the instructions for your specific device, since manufacturers from China often use non-standard color markings.

The main power is supplied through two main wires: constant plus (memory) and control plus (ignition). An error in their connection will result in the radio resetting the settings every time the engine is turned off or, conversely, draining the battery overnight.

Standard ISO pinout (check with a multimeter!):
Yellow - Constant +12V (BATT)
Red - Control +12V (ACC)
Black - Ground (GND)
Blue - Antenna/Amplifier (REM)

To connect the speakers, wires are twisted in pairs. It is important to observe polarity: plus to plus, minus to minus. If you reverse the polarity on one of the speakers, the sound will become flat and lose bass due to antiphase.

Wire color (Auto)	Purpose	Wire color (Radio)	Action
Yellow	Constant plus	Yellow / Red	Connect directly
Red	Ignition	Red	Connect directly
Black	Ground	Black	Ground to body
Orange	Backlight	Orange / White	Optional

⚠️ Attention: do not connect the wires by simple twisting without subsequent insulation. Vibrations from the vehicle will eventually break contact, causing crackling noises in the speakers or system reboots. Use soldering or high-quality crimp sleeves.

Integration of steering control buttons

Maintaining the functionality of the buttons on the steering wheel is an important aspect of comfort and safety. For this purpose, an external IR adapter or a wired resistive module is often included with the Android radio. The connection depends on the type of your car and the version of the standard wiring.

In most cases, the analog connection method via wire is used Key1 or Key2. You will need to find the corresponding wire in the car block that comes from the steering wheel buttons and connect it to the radio input. Digital protocols (CAN-bus) require configuration through a special device menu.

After physically connecting, you need to go to the settings of the head unit. The section is usually called Steering Wheel Control or “Steering wheel settings”. There you sequentially press the buttons on the steering wheel and assign actions to them in the interface: volume, switching tracks, answering a call.

Sometimes the buttons do not work correctly or are triggered one after another. In this case, you may need to change the protocol type in the settings or install an additional resistor in the circuit. Experiment with the settings until the response becomes instant and accurate.

Adjusting the sound and eliminating interference

After the first turn on, you may encounter extraneous noise: a whistle when you press the gas, the background of the gas pump, or interference from the generator. This is a common problem when installing non-standard head units in domestic cars.

The main cause of interference is poor grounding or interference with signal wires. Make sure that the black ground wire is securely screwed to the stripped metal of the body, and not to a plastic element or an old rusty fastener point.

• 🔊 Check the connection of the REM (blue) wire - it controls the inclusion of the amplifier or active antenna.
• 📻 Try changing the position of the antenna cable so that it does not lie close to the wires power supply.
• ⚡ Install a power noise filter if the noise comes from the generator.

In the settings of the Android system itself, it is worth spending time on the equalizer. The standard Priora speakers are not of outstanding quality, so correct adjustment of frequencies will help improve the perception of music. Remove unnecessary low frequencies to avoid wheezing at high volumes.

How to set the equalizer for standard speakers?

For budget Priora acoustics, it is recommended to slightly raise the mid frequencies (Mid) for clarity of vocals and slightly lower the deep bass (Low) to avoid rattling doors. High frequencies (High) can be added for detail, but without fanaticism, so that hiss does not appear.

Final assembly and testing of the system

Before finally fixing the radio in the shaft and screwing on the decorative frame, conduct a full test of all functions. Check Bluetooth functionality, Wi-Fi connection, navigation, and video playback from a USB storage device. Make sure the touchscreen responds correctly in all angles.

Carefully lay all the wires deep in the panel so that they do not touch the moving mechanisms of the heater or gearbox levers. The excess length of cables should be wound into a bundle and secured with ties to avoid vibration noise.

Install the adapter frame and snap the decorative covers. Turn on the ignition and check for new squeaks in the center console area. If everything works stably, you can consider the installation complete.

⚠️ Attention: if the radio gets hotter than usual or reboots spontaneously, immediately check the reliability of the ground contact. Often the problem lies precisely in poor grounding, and not in a defect in the device itself.

Frequently asked questions (FAQ)

Why does the radio turn off when starting the engine?

This occurs due to a voltage drop in the on-board network when the starter is operating. Check the reliability of the connection between the permanent positive (yellow wire) and ground. If the problem persists, the battery may need to be charged or replaced.

How to connect a rear view camera to an Android system?

The camera is connected to a special connector marked BACK or CAM-IN. Power for the camera is usually taken from the reverse light wire. Do not forget to activate the function of automatically switching to the camera when you engage reverse gear in the radio settings.

Can you listen to the radio without an antenna?

High-quality radio reception is only possible with an active antenna connected. Make sure that the blue wire ANT-REM is connected to the antenna power wire, otherwise the antenna amplifier will not turn on, and you will only receive powerful stations with interference.

What to do if the screen sensor is not working properly?

In the Android settings, find the "Factory settings" section (password required, usually 8878 or 1234) and select screen calibration. Follow the instructions on the display, pressing the crosses in the corners of the screen to fine-tune the response.