I have both a Symphony II and an Audi XM tuner that came off a '05 S4. Both were removed 3 days after purchase, brand new. I dont have harness for the head unit or tuner (easy to get). I dont have a code either, however I understand you can just call an Audi dealership for help with that. Im in CA., asking $200 for the pair (includes shipping). Willing to seperate/negotiate.