Installing a 2-DIN Android Car Stereo in a Peugeot Boxer III X290 2014–2021
My Store AdminInstalling a 2-DIN Android head unit in a facelifted Peugeot Boxer III X290 from 2014 onwards requires a dedicated fitting kit, a suitable wiring harness and particular attention to the vehicle’s CAN Bus system. This guide explains the required parts, removal process, wiring, Fakra aerials, steering wheel controls, GPS, microphone and final checks.
This installation mainly applies to Peugeot Boxer III X290 Phase II models, model years 2014 to 2021. Before ordering, check the exact year, dashboard configuration and type of original head unit.
For this model, a double-DIN kit such as the Connects2 CT23PE17 can be used. You will also need an ISO wiring harness with a CAN Bus interface, a Fakra aerial adaptor, a steering wheel control interface, an external GPS antenna, an external microphone and the required extension cables for USB, the camera or other accessories.
Essential point: the adaptor wiring harness must include a CAN Bus interface. Without an active CAN interface, parts of the dashboard may flash, particularly the clock or mileage display. The issue is not necessarily caused by the head unit, but by missing or incorrect CAN communication.
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Executive Summary
Installing a 2-DIN Android head unit in a Peugeot Boxer III X290 2014–2021 is not a simple universal installation. The Boxer uses a specific architecture with a PSA / Fiat wiring harness, Fakra aerial connectors and CAN signals. The new head unit must therefore be integrated using the correct adaptors.
The main requirements are:
- check the vehicle’s exact year and dashboard shape;
- use a compatible 2-DIN fitting kit, such as the Connects2 CT23PE17;
- use an ISO wiring harness with a CAN Bus interface;
- retain or adapt the Fakra FM, DAB and GPS aerials;
- install an external GPS antenna if required;
- install an external microphone for Bluetooth calls;
- use a steering wheel control interface such as the Connects2 CTSPG017.2 or equivalent;
- test the head unit before final reassembly;
- check that no flashing display or CAN fault remains on the dashboard.
Required Parts and Fitting Kit
These are the main items required before starting the installation. Preparing them in advance helps avoid repeated dismantling and compatibility errors.
| Item | Description / Reference |
|---|---|
| 2-DIN Android Head Unit | 2-DIN Android main unit compatible with CarPlay / Android Auto. |
| Boxer 2-DIN Fitting Kit | The Connects2 CT23PE17 fascia is designed for the 2014–2021 Peugeot Boxer. The kit generally includes brackets, screws, clips, four Torx screws and four Phillips screws, depending on the configuration. |
| ISO–CAN Adaptor Wiring Harness | PSA mini-ISO wiring harness to standard ISO adaptor with a CAN Bus interface. Examples cited include the InCarTec 20-184-IGN or Connects2 CT20FT04 for the 2014–2021 Boxer. |
| Steering Wheel Control Interface | Example: Connects2 CTSPG017.2, suitable for the 2015–2021 Boxer, with a brand-specific patch lead for the head unit. |
| Fakra FM Aerial | Fakra FM aerial adaptor, such as the Connects2 CT27AA17, to connect the original aerial to the new head unit. |
| GPS Antenna | External GPS antenna or the antenna supplied with the Android head unit. It is generally wired and should be positioned in an unobstructed area. |
| External Microphone | Wired microphone for Bluetooth and hands-free calls. It can be installed near the roof console, on the A-pillar or beneath the dashboard, according to preference. |
| USB / AUX / Video Extension Cables | Extension cables for USB, the reversing camera, auxiliary input, camera or video accessories. |
| Tools | Radio removal keys, Phillips screwdriver, Torx screwdriver, pliers, a utility knife or fine saw for any required trimming, gloves and safety glasses. |
Important note: if you want to retain the original DAB aerial, you will need a Fakra DAB adaptor or an additional DAB aerial. Plug-and-play wiring harnesses are available, but always check that they include a CAN Bus interface compatible with the Boxer.
Connections and Pinouts
Original PSA / Fiat Radio Connector
The Peugeot Boxer uses an original PSA / Fiat wiring harness, often described as a 52-pin connector or mini-ISO wiring harness depending on the equipment. A wired standard adaptor is required to convert it to the new head unit’s ISO format.
Main Original-Wire Assignments
| Function | Pin / Stated Colour | Purpose |
|---|---|---|
| Ignition-Switched +12 V | Pin 15 – Yellow | Ignition / ACC supply, depending on the wiring harness. |
| Permanent +12 V | Pin 12 – Red | Battery / memory supply. |
| Earth | Pin 16 – Black | Chassis earth / GND. |
| Rear Left Speaker + | Pin 4 – Green | Positive rear-left audio output. |
| Rear Left Speaker – | Pin 8 – Green / Black | Negative rear-left audio output. |
| Front Left Speaker + | Pin 3 – White | Positive front-left audio output. |
| Front Left Speaker – | Pin 7 – White / Black | Negative front-left audio output. |
| Front Right Speaker + | Pin 2 – Grey | Positive front-right audio output. |
| Front Right Speaker – | Pin 6 – Grey / Black | Negative front-right audio output. |
| Rear Right Speaker + | Pin 1 – Purple | Positive rear-right audio output. |
| Rear Right Speaker – | Pin 5 – Black / Purple | Negative rear-right audio output. |
Essential check: wire colours may vary according to the version, market and wiring harness. Always compare them with the instructions for the head unit, adaptor wiring harness and vehicle.
Other Boxer Connectors
In addition to the main wiring harness, the Boxer may have several auxiliary connections:
- original hands-free microphone or external microphone;
- RCA connectors for the reversing camera or video accessories, depending on the installation;
- internal CAN Bus modules connected to the clock, instrument panel, light sensor or vehicle information;
- three typical Fakra connectors: FM, DAB and GPS.
The white Fakra connector is generally linked to the FM aerial. The other two may correspond to DAB and GPS, depending on the vehicle configuration.
Standard ISO Wiring Harness after the Adaptor
After installing the adaptor wiring harness, the new head unit will generally receive a 16-pin ISO connector. The power and speaker wiring then follows a more standard arrangement.
| ISO Block | Wire / Function | Purpose |
|---|---|---|
| Block A – Power | Yellow → Permanent +12 V | Head-unit battery and memory supply. |
| Block A – Power | Red → Ignition-Switched +12 V ACC | Ignition-switched power. |
| Block A – Power | Black → Chassis Earth | Head-unit electrical earth. |
| Block A – Power | Blue → Aerial / Amplifier | Electric aerial or amplifier control, depending on the wiring harness. |
| Block A – Power | Orange → Illumination | Illumination or button lighting, where available. |
| Block B – Speakers | Four Pairs of Wires | Front left, front right, rear left and rear right, with + and – polarity. |
Detailed Installation Procedure
-
Preparation and Safety.
Switch off the ignition and disconnect the negative battery terminal to prevent a short circuit. Prepare the workspace, tools, head unit, fitting kit, wiring harness, microphone, GPS antenna and extension cables. Check that the supplied screws are present, generally four Torx screws and four Phillips screws, depending on the kit. - ```
-
Removing the Original Head Unit.
Insert the radio removal keys into the four slots at the corners of the unit. Apply gentle leverage to withdraw the original unit, often a Continental VP2 depending on the version. Once it is removed, disconnect the main PSA / Fiat wiring harness, Fakra FM / DAB / GPS connectors, microphone and any other connectors. -
Removing the Casing and Any Required Trimming.
After removing the original unit, remove the four screws securing the metal casing or fitting cage. On models equipped with a Uconnect surround or premium head unit, part of the plastic structure may need to be trimmed to accommodate the new 2-DIN unit. The Connects2 manual identifies the areas to remove for Basic or Uconnect wiring harnesses. Use a utility knife or fine saw carefully and check the fit regularly. -
Fitting the Brackets and Fascia.
Secure the kit’s metal brackets to the sides of the new head unit using the supplied screws and washers. Then position the unit in the CT23PE17 finishing fascia. Its depth and height must align correctly with the slots. Attach the brackets to the rear mounting holes in the fascia using the supplied Phillips screws, without fully tightening them until the alignment has been checked. -
Electrical Connection.
Connect the ISO adaptor wiring harness to the new head unit. The other end connects to the vehicle’s original wiring harness without cutting any wires. Check that yellow corresponds to permanent +12 V, red to ignition-switched +12 V ACC and black to earth. Then connect the FM aerial to the white Fakra connector or through the supplied adaptor. If you are using the original DAB aerial, connect it to its dedicated socket. -
Connecting GPS, Microphone, CAN Bus and Steering Wheel Controls.
Connect the GPS antenna to the head unit’s GPS socket and place it in an unobstructed area, ideally near the windscreen. Connect the external microphone to the head unit’s microphone input. Ensure that the CAN Bus interface is correctly positioned between the original wiring harness and the head unit. Some CAN boxes require their DIP switches to be set according to the vehicle. For the steering wheel controls, connect the CTSPG017.2 interface or equivalent and wire Key1 / Key2 / GND according to the head-unit instructions. -
Preliminary Check before Final Tightening.
Temporarily reconnect the battery and switch on the ignition. Check that the head unit powers on, the display works correctly, sound is available, the buttons illuminate if the illumination wire is used, the FM radio receives a signal, GPS is detected, Bluetooth works and the steering wheel controls respond. If the instrument panel, clock or mileage display flashes, the CAN interface is probably inactive or incorrectly connected. -
Final Installation.
Disconnect the battery again. Insert the head unit and its brackets into the opening. Secure the brackets to the dashboard mounting points, using the existing holes or pilot holes where necessary. Check the alignment: the Connects2 fascia should fit neatly without excessive play. -
Refitting the Trim.
Refit the air vents, covers, side trims, screws from the removed panels and dashboard finishing pieces. Ensure that all clips are properly refitted to prevent vibration. -
Configuration and Final Test.
Reconnect the battery, switch on the ignition and complete the configuration: language, Bluetooth, screen calibration, date, time, CarPlay, Android Auto, GPS, radio and reversing camera, if installed. Programme the steering wheel controls according to the interface procedure, then test the system under normal driving conditions. - ```
Special case: for a single-DIN unit, trimming the dashboard is not always necessary. However, for a neat 2-DIN installation with the CT23PE17 fascia, check the available space and follow the fitting-kit instructions.
Quick Checklist before Final Assembly
- Battery reconnected only for testing, then disconnected before final installation.
- The head unit powers on correctly from the ignition-switched +12 V supply.
- The permanent +12 V supply retains the head unit’s memory.
- The earth connection is secure and correctly connected.
- All speakers work, one channel at a time.
- The FM radio receives the signal correctly through the Fakra connection.
- The GPS antenna is recognised in the settings.
- The external microphone works during Bluetooth calls.
- The steering wheel controls respond correctly.
- No abnormal flashing appears on the instrument panel, clock or mileage display.
- The CAN Bus interface is powered and active.
Simplified Wiring Plan
This is a simplified representation of the connection path between the original wiring harness, CAN Bus interface, ISO wiring harness and new Android head unit.
Main Connection Diagram:
Vehicle’s Original PSA Connector
↓ power / speaker / CAN wiring harness
Integrated CAN Bus Interface
↓ standard ISO output
2-DIN Android Head Unit
FM / DAB / GPS Fakra Aerials
↓ aerial adaptors where required
Android Head Unit or Dedicated Module
External GPS Antenna → Android Head Unit
External Microphone → Android Head Unit
CTSPG017.2 Steering Wheel Control Interface → Android Head Unit
CAN Speed / Brake / Illumination / Ignition Signals → Android Head Unit through the CAN Interface
It carries power, speaker, aerial and vehicle-information connections, depending on the configuration.
It retrieves the required signals: ignition, illumination, speed, brake, steering wheel controls or vehicle information, depending on the model.
It powers the new head unit and carries the speaker outputs.
It receives power, audio, GPS, microphone, USB, aerial and steering wheel control connections.
Ventilation and Safety
The installation should be carried out in a well-lit, ventilated area. Even if the task appears straightforward, it involves electrical and mechanical work on the dashboard.
- Always disconnect the battery before carrying out any electrical work.
- Never force the dashboard’s plastic clips.
- Wear gloves and safety glasses when carrying out any trimming.
- Check the fascia fit regularly before removing more material.
- Avoid overtightening screws in plastic.
- Use moderate tightening torque: the aim is to secure the parts firmly without distortion.
- Do not leave any loose cables that could vibrate or become trapped behind the head unit.
- Secure the USB, GPS, microphone and camera extension cables neatly.
Important: do not cut the original wiring harness when a plug-and-play adaptor is available. On this type of vehicle, careless cutting can cause electrical or CAN faults that are difficult to diagnose.
Programming the Steering Wheel Controls
The Connects2 CTSPG017.2 or equivalent is designed to retain the 2015–2021 Boxer’s steering wheel controls through the vehicle architecture. Once connected, it will generally detect the vehicle through the CAN Bus.
Depending on the interface, you may need to configure internal DIP switches to specify the make, year or vehicle type. Then open the Android head unit’s menu and select SWC, Steering Wheel Control or steering wheel control learning.
The typical procedure is as follows:
- connect the steering wheel control interface between the original wiring harness and the head unit;
- connect the patch lead specific to the head-unit brand;
- check the Key1, Key2 and GND wires if the head unit uses them;
- open the head unit’s SWC menu;
- press a function on the screen, then press the corresponding steering wheel button;
- repeat for volume, track, call, source and other functions;
- save the configuration;
- test every button before reassembly.
Please note: if certain buttons do not respond, check the Key1 / Key2 / GND wires, head-unit patch lead, DIP switches and CAN profile. With the dedicated interface, cutting the original wiring should not normally be necessary.
Common-Issue Troubleshooting Table
| Symptom / Indication | Possible Cause | Recommended Remedy |
|---|---|---|
| The Head Unit Does Not Power On | Blown fuse, incorrect power connection or red / yellow wires confused. | Check ignition-switched +12 V, permanent +12 V, earth and fuses. Test the red, yellow and black wires with a multimeter. |
| The Head Unit Switches Off Suddenly | ACC wire incorrectly connected or no ignition signal from the CAN Bus. | Check that the red ACC wire is powered when the ignition is on. Confirm that the CAN interface is active. |
| Instrument Panel, Clock or Mileage Display Flashes | CAN interface missing, incorrectly connected or incorrectly programmed. | Connect the CAN interface correctly, check its power supply and reprogramme or replace the box if necessary. |
| No Sound or Intermittent Audio | Speakers incorrectly connected, polarity reversed or inadequate earth. | Check speaker continuity, + / – polarity, the black earth wire and the head unit’s audio output. |
| Black Screen or No Display | No display power, missing ACC supply or illumination wire incorrectly connected. | Check ignition-switched +12 V, permanent +12 V, earth and the orange illumination wire, if used. |
| No DAB Reception | DAB aerial disconnected, incorrect adaptor or faulty aerial. | Connect the original DAB aerial using a compatible adaptor or install a plug-in DAB aerial. |
| Microphone or Bluetooth Not Working | Microphone incorrectly connected, wrong socket or Bluetooth not paired. | Check the microphone socket, enable hands-free mode and pair the telephone again. |
| Steering Wheel Controls Not Recognised | SWC interface incorrectly configured, incorrect DIP settings or Key1 / Key2 reversed. | Set the DIP switches according to the instructions, repeat SWC learning and check the Key1 / Key2 / GND wires. |
Diagnostic Advice
Most issues can be resolved by returning to the relevant wiring step. For example, if the CAN interface is missing or unpowered, it cannot correctly provide the ignition signal, vehicle information or steering wheel controls.
A multimeter is strongly recommended for checking:
- the permanent +12 V supply;
- the ignition-switched +12 V supply;
- the earth connection;
- activation of the ACC wire;
- the CAN interface power supply;
- speaker continuity;
- the correct polarity of the audio channels.
Practical experience: if the dashboard flashes or certain functions remain unavailable after installation, check the CAN Bus and wiring harness before concluding that the Android head unit is at fault.
Conclusion: Successfully Installing an Android Head Unit in a Peugeot Boxer III
Installing a 2-DIN Android head unit in a Peugeot Boxer III X290 2014–2021 is entirely possible, but it requires a suitable fitting kit and careful integration. The most important components are a compatible 2-DIN fascia, an ISO wiring harness with a CAN Bus interface, a Fakra adaptor, GPS antenna, external microphone and steering wheel control interface.
A successful installation is based on three principles: do not cut the original wiring harness, use the correct adaptors and test every function before final reassembly. The CAN Bus interface is particularly important because it prevents dashboard faults and retrieves the signals required for the head unit to operate correctly.
Choose the Right Head Unit for Your Peugeot Boxer
View our Android 15 head unit for the Peugeot Boxer and Fiat Ducato. If you are unsure about the fascia, Uconnect, CANBUS wiring harness, Fakra connectors, steering wheel controls or original camera, request a compatibility check before ordering.
Main Sources Used
The technical information in this guide is based on the manufacturers’ instructions for Connects2 CT23PE17 and CTSPG017.2, installer guides, user feedback, technical forums, InCarTec guides and ISO adaptor-wiring diagrams. These sources confirm the key steps, wiring precautions and importance of the CAN Bus interface.
FAQ: Installing an Android Head Unit in a Peugeot Boxer III X290
Which Android head unit should be installed in a Peugeot Boxer III X290 2014–2021?
Choose a 2-DIN Android head unit that is compatible with a fitting kit designed for the Boxer III X290 dashboard. The Connects2 CT23PE17 is a commonly cited kit for 2014–2021 models.
Is the Connects2 CT23PE17 kit required?
For a neat double-DIN installation, a dedicated kit such as the CT23PE17 adapts the fascia, brackets and mountings to the Peugeot Boxer dashboard.
Why is a CAN Bus interface required?
The CAN Bus interface retrieves essential vehicle signals such as ignition, illumination, certain vehicle information and steering wheel controls, depending on the configuration. Without it, the dashboard may flash or certain functions may remain inactive.
Can the steering wheel controls be retained?
Yes, using a compatible interface such as the Connects2 CTSPG017.2 or equivalent, together with a patch lead suitable for the Android head-unit brand.
How many Fakra connectors does the Boxer have?
Depending on the configuration, the Boxer may have several Fakra connectors, generally for FM, DAB and GPS. The white Fakra connector is often linked to the FM aerial.
Does the dashboard need to be trimmed?
On certain versions, particularly those with a Uconnect surround or 2-DIN installation, some plastic trimming may be required. Follow the fitting-kit instructions and proceed carefully.
What should I do if the clock or mileage display flashes after installation?
This often indicates a CAN communication issue. Check the CAN Bus interface, its power supply, wiring and configuration.
Should the system be tested before refitting the dashboard?
Yes. Test power-up, memory, sound, FM, GPS, microphone, Bluetooth, steering wheel controls, camera and the absence of CAN faults before final reassembly.
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