Description
Car radio with CD and GSM navigation RT3-N3-02 for Citroën and Peugeot vehicles. It is from a Citroën C8 (2003); may also fit C5 and Peugeot 807. The radio must be coded to the vehicle using diagnostic equipment. Tested and fully functional.
Features
This Magneti Marelli RT3-N3-02 unit combines audio playback and onboard navigation in a single OEM head unit designed for PSA group vehicles. Key features include:
- CD player for standard audio media.
- Integrated navigation module (RT3 series) with map guidance capability.
- GSM/telephone module support for hands-free communication when paired with vehicle phone system.
- Designed to interface with vehicle CAN/multiplexing systems and OEM steering wheel controls where supported.
Compatibility
Direct fit or known fitment examples based on provenance and common applications:
- Citroën C8 (2003) – unit origin.
- Possible fitment: Citroën C5 (models equipped with RT3 architecture).
- Possible fitment: Peugeot 807 (RT3-equipped models).
Installation
Basic replacement steps for experienced technicians or competent DIYers:
- Disconnect the negative battery terminal before any work to avoid electrical damage and airbag/ECU issues.
- Remove trim panels and secure fasteners around the factory head unit following vehicle-specific procedure.
- Slide out the head unit, unplug antenna(s), power/speaker harness and any additional connectors (navigation/phone/aux).
- Install the replacement unit, reconnect all plugs and antenna(s), and reassemble trim.
- Perform diagnostic coding/pairing procedure so the radio is recognized and authorized by the vehicle (see Coding note below).
Technical Information
- Manufacturer: Magneti Marelli
- Model: RT3-N3-02
- Product Codes: 14956410XT, 6574F1
- Other Numbers: NFP; Unit origin: Citroën C8 (2003)
Mounting Recommendations
For reliable installation and activation:
- Always disconnect the battery before removal and follow the vehicle manufacturer’s disassembly instructions to avoid damage.
- Ensure correct antenna and navigation GPS connections for full functionality of radio and navigation features.
- Coding/Pairing: This OEM radio requires coding to the vehicle via diagnostic equipment to enable full functionality and hands-free features. It is recommended to perform coding using PSA-compatible diagnostic tools and by a technician familiar with PSA systems to ensure correct initialization.
Why This Part Most Commonly Fails
Typical causes of malfunction in OEM head units of this type include:
- Wear of the mechanical CD mechanism (sticks, read errors) over time due to use or debris.
- Thermal stress and aging of electronic components or solder joints leading to intermittent faults or complete failure.
- Water ingress or condensation from leaks or high-humidity environments causing corrosion.
- Power surges or improper jump-starting procedures damaging internal electronics or memory.
- Software corruption or loss of vehicle pairing data after battery disconnects—requires reprogramming/coding.
Additional Notes
Unit provenance: removed from a Citroën C8 (2003) and supplied as shown. The radio has been verified as functional at the time of listing. Because this is an OEM module, successful reuse usually requires correct electrical connections and diagnostic coding to the target vehicle.
