Connects2 CT10CT04 - Citroen C2 C3 C4 C5 C8 DS3 Nemo Berlingo - Parrot SOT T-Harness Cable Wiring Lead Connects2 T-Harness SOT Leads are primarily used when installing Parrot Bluetooth Car kits but can also be used to install other bluetooth devices and hands free kits into the car. SOT lead is designed to interface between the radio and the radio harness. It provides a power and earth supply to the handsfree kit and route the phone audio through the cars front speakers. No vehicle cables need to be cut. Fits the following vehicles: Manufacturer Model Note Year From Year To Headunit Connection Citroen Berlingo 40 Wires Populated In Radio Connector 2008 Quadlock (Fakra) Citroen C2 40 Wires Populated In Radio Connector 2005 Quadlock (Fakra) Citroen C3 40 Wires Populated In Radio Connector 2005 2016 Quadlock (Fakra) Citroen C4 40 Wires Populated In Radio Connector 2004 Quadlock (Fakra) Citroen C8 40 Wires Populated In Radio Connector 2005 Quadlock (Fakra) Citroen DS3 40 Wires Populated In Radio Connector 2009 Quadlock (Fakra) Citroen C5 40 Wires Populated In Radio Connector 2005 Quadlock (Fakra) Citroen Nemo 40 Wires Populated In Radio Connector 2008 Quadlock (Fakra) Citroen C3-Picasso 40 Wires Populated In Radio Connector 2009 Quadlock (Fakra) Citroen C4-Picasso 40 Wires Populated In Radio Connector 2006 Quadlock (Fakra) Citroen C4-Grand-Picasso 40 Wires Populated In Radio Connector 2006 Quadlock (Fakra) Installation: Most installation is carried out at the original connection behind the original car stereo, in some instance, where the car has an amplified system, the installation is carried out at the factory amplifier.The lead connects between the car ISO Harness lead and the connector provided with the car kit. The power connection is taken from the cars orginal wiring, for cars that do not have ignition feed supply, it will be necessary to source an ignition feed directly from the car fuse box. If the installation is carried out in the boot / trunk of the vehicle, then you will need an extension cable to allow for the device to be re-located to the front of the car.