Is this the factory radio? Do you see it turn on, change channels or CD/Tape functions all work, just no sound? If so the amp in the rear has probably failed or the ground or power to it is bad. Easy way to test those is to look at the wiring diagram and locate the Orange wire (battery positive) and the Black wire (ground) You can bare a spot on the black wire and run a short section of similar wire to a good ground in the back or take it to the battery negative post. Do you now have sound? If so the ground wire has broken. If nothing yet, bare a spot on the orange wire and run a wire from it to the positive battery post. Do you have sound now?
If neither of those get the sound back it is either the amp on output in the head unit OR the amp is bad.
Tuesday, May 23rd, 2017 AT 3:01 PM