No Sound From Radio

brplut40 · January 30, 2010

I have been having problems with my stock radio not having any sound. The radio would be on and tuned into a station, just no output from any speakers. Sometimes it would just start to work for a random amount of time. It fully has not worked for the last couple of weeks. I got tired of this and put in an aftermarket cd player. The player works fine in other vehicles. I used the harness adapter, so I did not have to cut any stock wires. The aftermarket player turns on, tunes into a station, but no audio at all. I am wondering if I have a factory amplifier in my 1998 K1500 SLT? If I do, can anyone point me to where it would be. I assume the factory amp may have gone bad, which is why I have no sound from both the stock and aftermarket head unit. Some wiring diagrams I look at show a factory amp.

jro909 · January 31, 2010

check fuses and turn the rap music down

brplut40 · January 31, 2010

checked all the fuses, both under the hood and by the driver door. Nothing is blown.

takevin · February 1, 2010

Sounds like a short in one the speakers, the radio will go in protection mode and no sound.

brplut40 · February 1, 2010

would it go into protect mode for both the stock and aftermarket? I am just trying to figue out how to diagnose if it is the factory amp or not.

az'03Silverado · February 1, 2010

Mine did this until I found some chaffing speaker wires under the driver's side kick panel. The parking brake pedal was pinching them and causing them to short. Check there.

brplut40 · February 20, 2010

you have to love your multimeter. Found out that the stock tweeter in the driver door was bad. I disconnected it and everything worked. Once I tracked that down based on the lack of resistance for that speaker wire, everything worked fine. Thanks for the help.

brplut40 · February 26, 2010

it was actually the 6.5" speaker in the door, not the tweeter. Once I got the speaker out, it was in such bad shape, the cone would not even move.

PintailDrake2010 · February 26, 2010

yep this just happened to my new stereo I installed. One of the speaker wires in the door was grounding out and the radio went into protect mode. Get in the truck and be as quiet as you can and turn the key. Listen very close and if this is the problem you will hear a faint static noise from the problem speaker. Then you can fix the problem. It is nothing major good luck and let us know which speaker it is.