I used this interface in my 2007 S4 with stock RSN-E radio. I recently updated to a aftermarket double din which no longer works with this interface.
You will get the module and harness and I'll dig up the PDF for instructions for installation. This unit has worked with 4 different V1 versions that I own and have not had any issues until I upgraded my head unit.
I'm asking $250 or best offer shipped USPS priority.

Bookmarks