Ok... i was going through some old Cds and found a Queen Greatest Hits Cd.. so i decided i needed some thing different to listen to.. Anyways i went to the back of my car popped in the cd and went back in... I waited til all the cds were loaded and then went to the cd i just put in.. then this ERR1 came up, i thought that maybe the cd could have been a copy and it wouldnt read it, but its not. Then the cd changer went to the next cd and its said the same ERR1, which never happened before..



What Do i DO?????/

THINGS I ALREADY DID...
1. Disconnected the neg. part of the battery for like 10 mins.

 

Check these two posts and the links therein:

https://www.audiforums.com/forum/audi-a4-8/err1-cd-changer-19329/
https://www.audiforums.com/forum/audi-a4-8/err1-err3-cd-changer-19288/