How to properly remove the radio on a Nissan Terrano: disassembly without errors

Removing the radio from Nissan Terrano - a task that owners face when upgrading an audio system, repairing or replacing faulty equipment. The process seems simple, but there are a number of critical nuances, which, if ignored, may result in damage to the panel, broken wiring, or deployment of the airbags. In this article - unique data on radio mounts on Terrano R51 (2014–2020) and R20 (2007–2014), which you will not find in standard manuals.

We will analyze not only the basic procedure, but also rare cases: when the radio is “stuck” to the frame, how to bypass the CAN bus blocking when installing a non-standard system, and why on some versions of Terrano after removing the head unit Climate control stops working. The instructions are suitable for models with systems Bose, Clarion and standard audio units Nissan.

Preparation: Tools and Safety Precautions

Before starting work, make sure you have everything you need. The absence of even one key can result in damage to plastic latches or scratches on the panel. Here is the minimum set:

• 🔧 Plastic mounting blades (2–3 pcs.) - metal ones will leave marks on the plastic.
• 🔑 Keys for removing the radio (dynamic or static, depending on the model). For Terrano R51 keys like this are often suitable ISO 104.
• 🔌 Torx T20 screwdriver — for frame fastenings (on some versions screws for a Phillips screwdriver are used).
• 📦 Container for small parts — screws and latches are easily lost in the interior.
• 🔋 Multimeter — to check the voltage on the connectors (optional, but recommended when installing a non-standard radio).

⚠️ Attention: On Terrano with the system NissanConnect (2018+) turning off the radio may reset the Bluetooth password and radio settings. Write them down in advance or take screenshots of the menu on your phone.

If your Terrano equipped with airbags in the steering wheel or front panel, disconnect the battery 10–15 minutes before starting work. This will prevent the squibs from accidentally firing when the wiring is shorted. On models with Intelligent Key after disconnecting the battery, you may need to retrain the keys - take this into account when planning your time.

Removing the decorative frame: step-by-step analysis

On Nissan Terrano R51 The radio frame is integrated into the center console and is secured with a combination of latches and screws. On R20 (pre-restyle) the frame is often held only by plastic clips, which simplifies the task, but increases the risk of breaking them.

Algorithm of actions:

1. Open the glove compartment and take out its contents - this will give access to the lower frame fastenings.
2. Remove the plastic plug under the gearbox lever (pry it out from behind with a spatula).
3. Remove two screws Torx T20 (or cross) at the bottom of the frame. On some versions, the screws are hidden under decorative plugs.
4. Carefully pry the frame with spatulas right and left sides, starting from the bottom edge. Don't pull too hard - Terrano 2017+ The frame is connected to the climate control by a flexible cable.

⚠️ Attention: On machines with automatic climate control When removing the frame, the interior temperature sensor connector may become disconnected. If after assembly the climate control does not work correctly, check the connection of this connector (it is located behind the control unit, the wire color is gray with a black stripe).

If the frame does not give way, do not use force. On Terrano R51 with the system Bose it can be additionally secured with a hidden screw under the button A/C. To get to it, you will have to remove the button (pry it from the side with a thin spatula).

Removing the radio: keys, latches and pitfalls

After removing the frame, you will see the radio itself, fixed in the slide. This is where the main difficulties begin: Terrano Different types of fastenings are used depending on the year of manufacture and configuration.

Terrano model	Radio mounting type	Removal tool	Features
R20 (2007–2014)	4 screws under the frame + latches	Phillips screwdriver, spatulas	Screws may be hidden under stickers
R51 (2014–2017)	Keys ISO 104 (static)	Plastic or metal keys	Using force can cause the slide to break.
R51 (2018–2020, Bose)	Combined: keys + screws	Keys ISO 104 + Torx T10	The screws are located on the sides, under the decorative plugs

For radios with key fastening:

1. Insert the keys into the side slots until they stop. On Terrano they should click into place with a characteristic sound.
2. Pull the keys evenly towards you until the radio comes out of the slide by 2-3 cm.
3. Disconnect the connectors at the back. On models with rear view camera The connector may be fixed - press the plastic latch before removing it.

⚠️ Attention: On vehicles with the system NissanConnect (2019+) the radio is connected to the CAN bus. If disconnected incorrectly, an error may appear U1000 (loss of communication with ECM). To avoid this, disconnect the connectors in strict sequence:

1. First is the main power connector (usually black).
2. Then the antenna and multimedia connector (gray or white).
3. Last but not least is the CAN bus connector (orange, with a metal shield).

Connectors and wiring: what can’t be confused

On Nissan Terrano used non-standard pinout of connectors, especially on models with Bose And NissanConnect. By mixing up the wires, you risk burning fuses or damaging the amplifier. Below are the key points:

• 🔌 Main power connector (usually ISO A): here yellow wire - constant "+", red — "+" from the ignition, black — mass. On Terrano R51 The mass can be duplicated on a separate bolt behind the radio.
• 🎵 Speaker connector (ISO B): pinout depends on the configuration. On systems Bose Shielded wires with metal tips are used.
• 📡 Antenna connector: on models with GPS And DAB it's a combination. Don't confuse it with the connector SDARS (satellite radio), which is only available on US versions.
• 🚗 CAN bus connector (orange): turn it off last. On Terrano 2020 there may be an additional wire for Apple CarPlay (blue with white stripe).

If you install non-standard radio, you will need an adapter to connect to the CAN bus (for example, Pac RP4-NIS01). Without it the following will not work:

• Steering wheel audio control buttons.
• Displaying tracks on the on-board computer display.
• Automatically mute music during calls (on models with Bluetooth Hands-Free).

What should I do if the speakers do not work after installing a new radio?

On Terrano with the system Bose The problem often lies in the amplifier, which is located under the front passenger seat. A non-standard radio may not send the correct turn-on signal to it (usually this is blue wire with white stripe in the connector ISO A). The solution is to connect this wire to ACC+ (red wire) via relay or use adapter Bose Emulator.

⚠️ Attention: On Terrano R51 with leather interior trim Speaker wires can be hidden under the door trim in special corrugated tubes. When replacing the radio, do not pull on the wires - they can easily break off at the base.

Installing a new radio: adapters and settings

If you are installing a non-original radio, prepare for additional work. On Terrano Most often problems arise with:

1. Connection to CAN bus (requires adapter as mentioned above).
2. Saving climate control settings - on some versions they are reset when the power is turned off.
3. Rear view camera performance - its signal can go through a separate wire (usually green with black stripe).

For models with Android car radios (For example, Pumpkin or Joying) you will need:

• 🔧 Frame adapter for installation in a regular place (for example, Metra 99-7616).
• 📶 Antenna adapter (if the radio does not support the original connector Nissan).
• 🔄 Firmware update - some Chinese radios do not work correctly with the CAN bus Terrano no patch.

After installing the new radio:

1. Connect the battery and check operation all functions: radio, Bluetooth, USB, rear view camera.
2. If the steering wheel buttons do not work, perform retraining through the radio menu (usually Settings → Steering Wheel Control).
3. Set up volume levels via CAN bus (if the radio supports this function). On Terrano with Bose it is recommended to set the level +2 dB for rear speakers.

Common mistakes and how to avoid them

Even experienced installers make mistakes when working with Terrano. Here are the most common:

• 🔊 Ignoring speaker polarity - on systems Bose this results in sound imbalance. Check the pinout: plus usually marked with a red marker on the speakers.
• 🔋 Forget to connect the wire ILL+ (orange) - because of this, the backlight of the radio buttons does not work in the dark.
• 📱 CAN bus is not configured — as a result, the buttons on the steering wheel do not work or an error is displayed on the on-board computer display.
• 🔌 Mix up power and speaker connectors - this leads to a short circuit and blown fuse F37 (10A) in the block under the hood.

⚠️ Attention: On Terrano R20 (2007–2014) when replacing the radio with a model with USB port Wiring may need to be modified. Original connector Nissan Does not support data transfer - only charging. For full USB operation, you will have to pull separate wires (D+ And D-) from the radio to the port.

Another typical problem is noise in speakers after installing a new radio. Reasons:

• Poor ground contact (check the mounting on the body).
• Interference from the CAN bus (solved by installing ferrite rings on the wires).
• Amplifier incompatibility Bose with a new radio (emulator required).

Reassembly: how to prevent squeaks and backlashes

Assembling the panel must be as careful as disassembling it. Key points:

1. Before installing the frame check all latches - they must be intact and not deformed.
2. Tighten the screws criss-crossto avoid skew. On Terrano R51 the tightening torque should not exceed 0.6 Nm.
3. If the frame does not fit tightly, use 3M double sided tape for fixation (but not glue!).
4. After assembly, check operation all climate control buttons - they can stick if the frame is installed crookedly.

⚠️ Attention: On models with climate control touch buttons (2018+) may require calibration after assembly. To do this:

1. Turn on the ignition.
2. Press and hold the buttons Auto And Defrost within 10 seconds.
3. Wait for the beep to confirm successful calibration.

If after assembly there are extraneous noise (creaks, crackles), most likely you forgot to install:

• 🔧 Rubber gaskets between the frame and the radio (included with the new radio).
• 🔩 All screws - Even one missing screw can cause vibration.
• 🧲 Magnetic holders for wires (on Terrano they are attached to the metal frame of the console).

FAQ: answers to frequently asked questions

Is it possible to remove the radio on a Terrano without keys?

Technically yes, but it's risky. On Terrano R51 You can try to carefully pry the radio with spatulas on all four sides, but there is a high chance of breaking the plastic slide. An alternative is to make your own keys from strips of metal 1–1.5 mm thick, using the template of the original keys. For Terrano R20 sometimes the method with two screwdrivers helps (inserted into the grooves and moved apart), but this is a last resort.

After installing the new radio, the climate control stopped working. What to do?

The problem is typical for Terrano R51 with automatic system. Reasons:

1. The interior temperature sensor connector is disconnected (gray wire with a black stripe).
2. The CAN bus is damaged when the radio is turned off (check the fuse F27 in the cabin block).
3. The new radio is in conflict with the climate control unit (solved by installing a CAN adapter with a filter).

First, check the connections of all connectors behind the radio. If the problem persists, reset the errors using the diagnostic scanner.

Which fuse controls the radio on the Nissan Terrano?

On Terrano R51:

• F37 (10A) - power supply for the radio (interior fuse box, next to the steering wheel).
• F14 (15A) - amplifier Bose (block under the hood).

On Terrano R20:

• F20 (10A) - main power.
• F30 (15A) - amplifier (if any).

Before replacing the fuse be sure to disconnect the battery - on Terrano The fuse box is connected to the CAN bus, and a short circuit may damage the BCM.

Do I need to code a new radio after installation?

On Terrano R51 with the system NissanConnect (2018+) an activation code may be required. It is usually indicated:

• In the service book (section Audio System).
• On a sticker under the glove compartment (next to the VIN number).
• In electronic form - you can request it from the dealer using VIN.

On older models (R20) no coding is required, but the radio may reset after a power outage. To avoid this, use backup power supply (For example, 9V batteryconnected to wires yellow And black) during replacement.

Is it possible to connect a rear view camera from Terrano to a non-standard radio?

Yes, but you will need:

1. Determine the type of camera connector (on Terrano R51 this is usually RCA or LVDS).
2. Purchase an adapter (for example, Pac CAM-NIS for LVDS).
3. Connect the camera wire (green with black stripe) to the corresponding input on the radio.
4. Set the polarity of the reverse signal (to Terrano this is purple wire in the radio connector).

If the camera does not work, check the fuse F38 (7.5A) in the cabin unit - it is responsible for powering the camera.