So I just got an 05 A6 and everything but the stereo works and I came here to see if anyone has a solution for my problem. I have pictures of where the modules are in the trunk and it looks like something is missing too

 

I think you're able to attempt the burner blew, wish it helps smart MP3 CD Burner helps you to burn custom, effective CDs out of your standard MP3s. you are able to then play them decrease back on your motor vehicle, on your living house stereo, or on a conveyable CD participant! this methodology is basic to apply and with very few clicks receives you burning.