Description
CD car radio for Citroën C5 from 2005 to 2007. The radio must be paired to the vehicle using diagnostic equipment.
This OEM-style RD4 N1 CD radio is designed for factory-fit replacement in compatible Citroën and Peugeot vehicles. It maintains original controls and appearance while restoring radio and CD playback functionality. The unit accepts factory steering wheel controls and standard dashboard mounting, providing a direct-fit look and operation for workshops and DIY enthusiasts who prefer genuine equipment.
Features and Function
• CD Player and AM/FM Tuner: Plays standard audio CDs and receives FM/AM radio stations.
• Factory Integration: Preserves original dashboard appearance and uses the vehicle’s existing control layout.
• Compatibility With Vehicle Systems: Requires pairing/coding to the vehicle after installation to enable full functionality and recognition by the car’s electronics.
Compatibility
Intended For: Citroën C5 II (model years 2005–2007). May Also Fit: Select Peugeot 407 models Equipped With RD4 Head Unit Connections. Always Check Fitment Against Physical Unit And Connector Layout Before Installation.
Technical Information
- Manufacturer: Stellantis
- Model: RD4 N1
- Product Codes: 9657312777
- Other Numbers: 6564V1, 6564V2
Installation Instructions
Basic Replacement Steps:
- Disconnect the negative terminal of the battery before starting to avoid short circuits.
- Remove the trim surrounding the head unit using appropriate plastic trim tools to avoid damage.
- Unscrew the retaining bolts and carefully slide the radio out of the dash.
- Unplug all electrical connectors and the antenna lead. Note connector positions or take photos for reference.
- Fit the replacement unit, reconnect connectors and antenna, then secure the unit back into the dash.
- Reattach trim and reconnect the battery.
- Perform the required coding/pairing with diagnostic equipment so the radio is recognized by the vehicle’s systems.
Recommended Installation Notes
Coding And Pairing: The radio Must Be Paired/Coded To The Vehicle With Diagnostic Equipment After Installation To Restore Full Functionality. This Step Is Typically Performed With OEM PSA Tools (DiagBox / Lexia / PP2000) Or Equivalent Diagnostic Equipment. If You Do Not Have Diagnostic Access, Seek A Professional Service To Complete Coding.
Handling Tips: Use plastic trim tools to prevent damage to panels. Protect the head unit and connectors from moisture and static. Keep screws and clips organized during disassembly.
Why This Part Fails
Common Causes Of Failure Include Mechanical Wear Of The CD Mechanism, Water Ingress Or Moisture Damage, Corroded Connectors, Electrical Surges Or Vehicle Battery Issues, And Age-Related Component Degradation. Problems Often Appear In Older Vehicles Or After Exposure To Humidity.
How Often It Fails
There Is No Fixed Lifespan; Failures Are More Likely In Units Exposed To Heavy Use, Moisture, Or Electrical Problems. In Practice, Mechanical CD Mechanisms And Aged Electronics Become Unreliable After Many Years Of Service.
Practical Advice For Workshops And DIYers
For Professional Results, Perform A Full Electrical Check Before Replacing The Unit (Battery Voltage, Fuses, Antenna Connection). Keep A Backup Of Radio Settings If Possible. After Installation, Verify Reception, CD Playback, And Any Steering Wheel Control Functions. If The Radio Does Not Respond After Fitting, Recheck Connectors And Proceed With Diagnostic Pairing.
Additional Notes
Supplied As A Direct-Fit Replacement Unit Intended For Vehicles With The RD4 Platform. Product Numbers And Codes Are Provided In The Technical Section — Use These When Searching For Exact Replacements Or Spare Parts.
