Hi, I have bought an Avic D3 stereo to fit into my 52 plate Audi A4 Avant Sport. I have bought PC9-404 wiring adaptor as well as PC5-52 amped antenna. I spent ages trying to find out which cables I needed and I thought I had the right cables, which would allow straight fitment. I have connected up the two ISO connectors and the extra red connector cable which drives the rear speakers but at the moment nothing powers up. When I look at the original Concert Stereo there are 2 pins that don't connect into the new loom, they are... I understand that on the red connector I need to power the blue aux wire to a switched live which will then turn the amp on to drive the rears, but at present I don't get anything at all from the stereo. So heres where I am at... ISO 1: Power (from the Car Wiring) Black connector Brown Wire- Labelled as Earth goes to Black Stereo wire Red/Blue Wire- Labelled as UB+ goes to Red Stereo wire Grn/Blue Wire- Labelled as K-Bus doesn't connect to anything Brown/Grey Wire- Labelled as DWA GND doesn't connect to anything ISO 2: Speakers...Brown connector I didn't take too much notice of on the concert stereo as they shouldn't have anything that stops the stereo coming on Audis Stupid Connector Green Wire - Labelled as LR. Goes to RH Coax Lead White Wire - Labelled as RR. Goes to LH Coax Lead Brown Wire - Labelled as Com (Common Earth?) will go to neg side of Coax I assume White Wire- Labelled as Switchable + Symbol will be the blue white lead to the Aux on the stereo Orange Black Wire- Labelled as Can L doesn't connect to anything Orange Purple Wire- Labelled as Can H doesn't connect to anything So... Any ideas... Do I need the Can L and Can H wires and what about DWA GND and K BUS... Any help would be brilliant as I aint going to rip the dash apart until I can get this working. Oh, and its not the fuses.