stroker

Hello all..Trouble with sound system. It sounds as if it is muted. Found the cell phone in the on mode and turned off the power button and the radio volume came back up to normal.. Today tried the radio and it is muted again(very very low volume when turned to max volume). The telephone is off and can't turn it on or off. Removed the fuse for phone and still no volume on radio..Never had the phone connected when I got the car, dont want it..What to Do? Thank you all, Stroker