I just bought a 95 C280 last night. the radio worked fine. When I started the car this morning, the radio doesnt work. It will turn on, the antennae will go up, but there is no music through the speakers. I can change the stations, but when I twist the volume knob, it doesnt affect the volumne. is this related to any anti-theft features or is it just broke??

Also, Ive gone through several cars and radios and Ive done them all myself. Can I put a single din radio in the compartment where the cassete holders are? How complicated is it to remove, does the whole dash have to come out? Any help woould be great THANKS