Description
FM antenna cable in the dashboard for Citroën C4 Picasso and Grand first generation
High-quality FM antenna cable designed for the dashboard installation of first‑generation Citroën C4 Picasso and Grand C4 Picasso models. This direct-fit cable restores reliable FM reception after damage or wear and is commonly searched by part numbers 9657963780 and 6561KN. Suitable for professional workshops and experienced DIYers, the assembly offers OEM-compatible fitment and original routing to maintain factory performance.
Technical Information
- Manufacturer: Stellantis / Citroën / Peugeot
- Model: Citroën C4 Picasso I, Citroën Grand C4 Picasso I, Peugeot 3008 I, Peugeot 5008 I
- Product Codes: 9657963780, 6561KN
- Other Numbers: NFP (as referenced in supplier listing)
Fitment And Function
This cable provides the FM radio antenna connection routed inside the dashboard, typically linking the vehicle antenna base or amplifier to the head unit. When installed correctly it preserves signal integrity for clear FM reception and prevents intermittent connection issues caused by damaged coax or worn connectors.
Replacement Procedure
- Safety First: Disconnect the negative battery terminal before beginning work to prevent short circuits and protect sensitive electronics.
- Access: Remove the radio/head unit or necessary dashboard trim panels to access the antenna connector and cable routing.
- Disconnect: Carefully unplug the antenna connector from the head unit or amplifier. Note the routing and any clips or grommets used to secure the cable.
- Remove Old Cable: Unclip and pull the old cable free, taking care not to damage surrounding components or trim retainers.
- Install New Cable: Route the replacement cable following the original path, secure all clips and grommets, and reconnect the antenna connector firmly to the head unit/amplifier.
- Test: Reconnect the battery, test FM reception and antenna continuity before reassembling trim panels.
Installation Recommendations
- Always disconnect the battery before disassembly to protect vehicle electronics.
- Preserve Original Routing: Install the new cable following the factory routing and secure all clips to avoid rattles and wear.
- Avoid Sharp Bends: Prevent kinking the coaxial cable; sharp bends can damage the inner conductor and degrade signal quality.
- Protect Connectors: Inspect and, if necessary, clean mating connectors. Use a small amount of dielectric grease on external connections to slow corrosion if appropriate.
- Test Before Reassembly: Verify radio reception and connector seating with panels removed to ensure the repair is successful.
Most Common Failure Causes
- Connector Corrosion: Moisture ingress or long-term exposure leads to poor contact and intermittent reception.
- Mechanical Damage: Cable or connector damage during previous dashboard repairs, removal of the head unit, or from improper routing.
- Wear And Fatigue: Over time the coax inner conductor can break or the shielding degrade, reducing signal quality.
- Poor Sealing: Damaged grommets or routing near water ingress points can allow moisture to reach the cable and connectors.
Search by OEM codes 9657963780 or 6561KN to quickly locate this part. Ideal for both professional mechanics and experienced DIYers who need a reliable, direct-fit replacement to restore FM reception in Citroën and related Peugeot models.







