I recently installed a RNS-E Nav plus (8E0 035 192 J model purchased from PROXUS) and a audi glovebox 6-CD changer (puchase from audi dealer) in my '06 Audi S4. Everything works fine except my SAT Sirius radio. I know I have the correct module model. Actually everything is working except there's no audio sound. Everything is detected, you can go through the channels, and each station will even show what song is playing, but there's just no audio sound. Does anyone know what's going on with it?