I am having a speaker problem on an old car...not a ford truck, but I'm hoping for help on this forum. My problem is that I am not getting sound from the speakers (new). The radio worked before in a different vehicle. I ran new speaker wires. I am wondereing how to check to see if there is power going to the speakers. If I hook up a multimeter to the speaker wires with radio on, should I get voltage at the end of the speaker wires? Volume readout on radio works so it is not the inline fuse. If anyone can help, thanks. I don't have much/any experience with radios and speakers.

 

voltmeters are crude for audio signals but some are sensitive enough....i wouldn't try to rely on just that. Bench test the radio or at least try routing speaker wires from headunit directly to one speaker at a time. You will have a more concise result if you make a quick diagram of the wires as you trace them from the HU you will have complete list when your done. If you still can't find output from speaker outs on radio...try tying all power leads on radio directly to a battery (constant power, acc power, instrument lights etc.).

 

Thanks, 4.2xl, I'll try that tomorrow after I check the IAC on my 89 F150.