1999 Saloon 520 Radio on mute
I have recently had my car serviced at a local garage and the radio, although on, has no volume. It appears to be in permanent mute. I dont have a phone connected to it, but cannot vouch for previous owners. I have owned the car for 4 years with no previous problem, and it was fine before the service. The garage are stumped ! I have had minor electrical repairs done at the service and wondered if something has been altered causing the radio to mute.As I do a loy of mileage I need it back on !! Can anyone offer any solutions?