50powered

i am not working on a mustang right now, its a 2000 toyota celica. i a not getting any sound from the speakers. it started when the driver door slammed closed. the sound would come and go, but nothing now. i pulled the door panel off and the speaker wires were disconnected. i connected them back up but still no sound. i pulled the head unitfromthe dash and checked the fuse in the backof the unit and it was ok. the radio is working ok. i checked all the connections and everything seems ok. i am now running out of ideas so any help will be appreciated, thanks