Audi a3 symphony problem no sound
 

Hi all

I have a problem with my radio. When selecting stations no sound is coming through the speakers. I can scan and it finds and locks on to radio stations so i know its not an aerial issue. There is no static noise, interferance or anything else, just no sound whatsoever. I have a parrot hands free kit installed, and when using this to listen to phone calls through the speakers, it works fine. I have disconnected the negative from the battery, but cant get it to go into safe mode. I have the code. Any ideas?

Thanks