Hello, does anybody have/could point me to a wiring diagram for the A3 (8L) radio wiring loom? I'm in the middle of putting the bits together to change my standard Concert head unit to a Becker Traffic Pro. I'm ok with the speaker plug, and I've got an adaptor to take care of the active rear speaker issue. (Autolead PC9-401). On the plug from the car which contains the power feed, I've only got four wires. Using my multimeter, I've sorted the Power, Earth and IGN, but there is another wire which doesn't seem to do anything. I thought it was the illumination feed, but the voltage doesn't change when the lights are turned on. Maybe it's the GALA signal? My car is a 2002 MY, so is this one of the part CAN-BUS cars? I've had to move the wires around on the Autoleads adaptor in order to get the Power/Earth etc to the right plug on the radio, which I thought was strange, but at least I've not had to chop the car wiring. On the adaptor, I've also got the blue and white wire which isn't connected to anything at the moment! Anyway, thanks in advance for any help/pointers, but I've read searched posts to death and seem no nearer sorting it out! I appreciate it's very difficult trying to help somebody over the internet when you really need to see the wiring, but hence my hope for a wiring diagram!