I bought the Precision Interface Electronics Auxiliary input for the Audi A4 which requires you to plug in the 13 pin connection to the cable that goes into the CD changer thus rendering your CD useless after you do that. The issue I am having is figuring out how to remove that CD Changer to get to that cable. Would anyone be able to instruct me on what I need to do to access this?

Thanks

 

Are you talking about the CD changer connection in the factory headunit itself, or a connector at the CD changer in the trunk?

 

The one in the trunk. Thats the cable I need to unplug and plug into the auxiliary unit and then run an RCA cable from there to the front seats.

 

there are two screws, one on each end of the CD Changer. You will need a stubby phillips. Why not just pull the radio and plug in behind there, instead of running wiring all the way from the trunk to the front seats? That's where the cable originates.