I have a '99 A4 with a Concert series stock radio/cassette and want to a a CD changer in the trunk, but can not find the factory cable that is supposed to be there. Where do I look and what am I lookng for?

Thanks,

Don

 

the cable is in the spare tire tool stow away on the left hand side. if you take your tools out just feel around in there and you'll find a loom of wires. in there you should find your connection with some sort of foam thing on the end of it. its a 13 pin aux connection. ill try and get pics up in a day or so if you still cant find it.