PC5-136 CITROEN C3 C4 C5 C6 Aerial Antenna Adaptor ISOWhen installing an aftermarket radio into your vehicle an adaptor lead is often required to enable connection of the vehicles existing aerial to the new head unit. We can offer a fixing solution for the vast majority of vehicles.We have an extensive range of in car audio Antenna Adaptors. Antenna Adaptors connect your car audio unit to the car's external aerial/antenna. PC5-136 :This amplified aerial adaptor fits in line with the car's aerial connection and has a built in booster to help increase signal strength. It is designed primarily for vehicles which have a short aerial fitted as standard. These cars have a booster built into the original OEM set so when exchanged for a new stereo the booster is removed from the system. If you have one of these cars and have encountered poor radio reception since changing the stereo then this is what you need. Compatible with:Citroen Berlingo (2006 Onwards) Citroen C2 (2005 Onwards) Citroen C3 (2005 Onwards) Citroen C4 (2004 Onwards) Citroen C5 (2005 Onwards) Citroen C6 (2006 Onwards) Citroen C8 (2003 Onwards) Citroen Relay (2005 Onwards) Citroen Synergie (2005 Onwards) Citroen Picasso (2004 onwards)For further information on this product please use the eBay message system and we will reply promptly.The above list of vehicles is a general guide and cannot be guaranteed in all cases.To ensure compatibility, we recommend that the vehicle connector pictured above is compared to the actual connector on your vehicle