Managed to get my hands on a totally mint condition Symphony II+ Radio from a 2007 A3 Sportback, exactly the same model as mine. Got the Quadlock cable from Kufatech.de and told them specifically what I needed the cable for and that I had the Bose Sound System (the Bose GND wire is linked to the CD GND wire on it so they took heed). Put the Symphony II+ in and the following behaviour happens: When the engine is off the FM/AM radio reception is absolutely fine. I start the engine. About 10 seconds after I have started the engine, it loses it's reception completely as if the aerial is disconnected, but it is definitely securely connected. Leave the engine running. Switch the radio off and then on again and it will cut the reception out after 10 secs. I've tried changing all the radio settings (RDS, GALA etc.) but it does this systematically. Switch the engine off. Switch the radio off and then on again and the reception is fine. Took it to some engineers (thanks guys) who had a look using VAGCOM and they say the radio isn't coded for Bose, and also that the coding radios for Symphony II+ is slightly different. It will not accept the code. Has anyone ever had this problem before or even better do they know of a fix? I'm sure it has to be rectified. The strangest thing is the CD player is totally fine and works a treat, audio CDs, MP3 CDs the works! I really like this radio and hope to get over this one quirk.