Pinout of the stock radio <em>Nissan X-Trail T31</em>: connectors, wire colors and connection diagram

What connectors are used in the standard radio? Nissan X-Trail T31

B Nissan X-Trail T31 The standard radio is connected via two main connectors:

• 🔌 Main power and control connector (20-pin, type ISO 10487) - is responsible for the voltage supply, lighting, antenna and signals from the buttons on the steering wheel.
• 🎵 Audio jack (16-pin) - transmits signals to the speakers (front, rear, subwoofer if equipped).

Depending on the vehicle configuration and year of manufacture, there may be variations in connectors. For example, in machines with a system Bose The speaker connection diagram will differ from the standard one. Also some versions X-Trail T31 equipped with an additional connector for CD changer or navigation system, which is located behind the radio.

It is important to consider that Nissan often uses non-standard connectors that are not compatible with universal ones ISO adapters. This means that to connect a non-standard radio, you may need to either resolder the wires or purchase a specialized adapter (for example, from Connects2 or PAC).

Pinout of the main power connector (20-pin)

The main connector is responsible for powering the radio, controlling the backlight, signals from the steering buttons and connecting the antenna. Below is a table with pinouts for Nissan X-Trail T31 (standard equipment without Bose).

Connection features:

• ⚡ Yellow wire (+Battery) must be connected directly to the battery via a fuse (recommended 10A). This will ensure that the radio settings are saved when the ignition is turned off.
• 🔑 Red wire (+ACC) usually connected to a contact 15 in the fuse box (power supply when the ignition is on). If you connect it to +Battery, the radio will work constantly, which will drain the battery.
• 🌑 Orange wire (Illumination) is responsible for the brightness of the backlight. In some cases it can be connected to +ACC, but then the backlight will be on at full power.

Pinout of audio connector (16-pin) for speakers

Audio jack in Nissan X-Trail T31 contains wires for connecting four speakers (front and rear) plus, in some configurations, leads for a subwoofer. It's important to note that Nissan uses non-standard color marking, which differs from the generally accepted ISO. Below is the pinout for a standard audio system (without Bose).

Key points:

• 🔊 Polarity speakers is critical for proper sound. If you confuse plus and minus, the sound will be muffled or with phase distortion.
• 🎶 In configurations with Bose The wires may be of different colors, and there is also a separate amplifier. In this case you will need amplifier walker or re-soldering wires.
• 🔧 If you are installing a non-standard radio, it is recommended to use audio adapter to preserve the original wiring.

Features of connecting a radio with Bose

Cars Nissan X-Trail T31 top trim levels were equipped with an audio system Bose, which has a number of features:

• 🎛️ Availability external amplifierlocated in the trunk or under the front panel. It controls all the speakers, including the subwoofer.
• 🔌 Non-standard pinout audio connector: the wires do not go directly to the speakers, but to the amplifier.
• 🚫 When replacing the radio with a non-standard one Bose amplifier won't work without additional adapter or crawler.

Solutions for connecting an aftermarket radio in a system with Bose:

1. Use amp crawler (For example, Nissan Bose Amp Bypass Harness), which emulates the signals of the standard radio.
2. Connect directly to speakers, bypassing the amplifier. To do this, you will need to find the speaker connectors in the doors and trunk.
3. Install a new amplifier and replace the entire audio system (expensive, but gives better sound).

⚠️ Attention: If you decide to bypass the amplifier Bose and connect directly to the speakers, please note that their impedance (resistance) may be lower than standard (for example, 2 ohm instead of 4 ohm). This can lead to overheating of the output stage of the new radio. Check the specifications of the speakers before connecting!

How to connect an aftermarket radio: step-by-step instructions

Installing a new radio in Nissan X-Trail T31 requires accuracy and adherence to sequence of actions. Below is a universal instruction suitable for most cases (without Bose).

1. Disconnect the battery (remove the negative terminal) to avoid short circuit.
2. Remove the stock radio:
   • Use plastic pullers or a screwdriver to pry out the decorative frame.
   • Unscrew the 4 bolts securing the radio (usually a Phillips screwdriver).
   • Carefully pull out the device by disconnecting the connectors at the back.
3. Connect the wires:
   • Connect the wires of the new radio to the car wires according to the pinout (use terminals or soldering).
   • To simplify the task, you can use ISO adapter (For example, CT27N01 for Nissan).

Typical installation problems:

• 🔇 No sound — check the speaker connections and radio settings (the sound in the menu may be muted).
• 💡 Backlight doesn't work - make sure the orange wire (Illumination) is connected correctly.
• 📻 Antenna does not extend - check the blue/white wire (Antenna Control).

Adaptation of steering buttons and other nuances

Many owners Nissan X-Trail T31 want to maintain functionality control buttons on the steering wheel after replacing the radio. To do this you will need:

• 🎛️ Adapter for steering wheel buttons (For example, PAC SWI-RC or Connects2 CTNIS001).
• 🔧 Connecting the adapter to CAN bus car (usually through the connector OBD-II or directly to the radio wires).
• 📱 Setting up a new radio to work with the adapter (select the connection type in the menu, for example, Nissan CAN).

Other important points:

• 📡 Antenna: B X-Trail T31 an active antenna may be installed that requires power (+12V via blue/white wire). If the new radio does not support antenna control, it can be connected directly to +ACC.
• 🔊 Subwoofer: Available with Bose The subwoofer is connected through an amplifier. To make it work with the new radio, you will need either a lineman or an amplifier replacement.
• 🚗 CAN bus: Some radios (eg Pioneer or Alpine) support integration with the on-board system Nissan through CAN. This allows you to display track information on the on-board computer display.

⚠️ Attention: When connecting the adapter for steering wheel buttons do not connect it to the CAN bus until the battery is completely disconnected. Incorrect connection may cause errors in the vehicle's control unit, resulting in a fire. Check Engine or incorrect operation of electronics.

Common mistakes and how to avoid them

Even experienced installers sometimes make mistakes when replacing a radio in Nissan X-Trail T31. Here are the most common problems and how to solve them:

Additional tips:

• 🔧 Always use fuses on line +Battery. Recommended denomination - 10A.
• 📋 Take a photo of the original pinout before disconnecting the wires. This will help avoid confusion when reassembling.
• 🔊 Check the sound on all speakers before final assembly of the panel. This will save time if you need to reconnect the wires.

FAQ: Frequently asked questions