Audio problems

alyle5864 · 08-10-2006, 06:28 PM

Well I recieved a replacement head unit for my 1986 Delco/Bose. Installed it and I've got no sound. The original did not work at all. This one appeares to be working as I can tune different stations and I see the stereo light coming on. It switches to AM and FM okay.

Can all four amps in the speakers be bad? Is there any way to test these? I know they can be rebuilt at about $75 each but with that cost I might as well replace the whole system. Not even static coming from them. Is there a fuse somewhere for the power to the amps?

Those that have replaced the system, did you use existing wireing or did you rewire the car?

Thanks

bogus · 08-10-2006, 06:49 PM

the relay is fried... I just don't remember where it is on an 86...

alyle5864 · 08-10-2006, 07:51 PM

Well I did some troubleshooting. Pulled one of the rear speakers and tested it and it works fine. Used my voltmeter and checked the voltage coming to the amp, 3 volts. Is this supposed to be 12v?? Haven't a clue where the relay is either.

Dads90 · 08-11-2006, 12:33 AM

My 90 had a am/fm tuner modulator mounted behind the glove box. My radio would make wierd sounds and I thought it was my speakers, but after testing them they were ok. Sometimes it would buzz pop or make no sound. I have a local vette part sell me that used tuner box for about 75 bucks. Replaced it and it solved the problem, might think about that!

Steel Breeze · 08-11-2006, 02:48 AM

Quote:

Originally Posted by alyle5864

Well I did some troubleshooting. Pulled one of the rear speakers and tested it and it works fine. Used my voltmeter and checked the voltage coming to the amp, 3 volts. Is this supposed to be 12v?? Haven't a clue where the relay is either.

Should be 12V. The relay in my 88 is up under the passenger side access panel. It is a #itch to reach. You are almost standing on your head. Some folks recommend pulling the wiring socket off the bottom of the relay, then installing a new relay, then taping it to a wiring harness in the vicinity, so as not to rattle around. I'm strange however, I like to put things where they are supposed to be, but thats just me. The other will work fine. Good Luck...

bogus · 08-11-2006, 12:02 PM

that damned relay moved around... on the 90-96s, it's near the steering column...

I think in some vintages, it's behind the DIC, but I am not 100% sure.

Start with the suggestion from steel breeze.

Steel Breeze · 08-14-2006, 02:38 AM

Quote:

Originally Posted by bogus

that damned relay moved around... on the 90-96s, it's near the steering column...

I think in some vintages, it's behind the DIC, but I am not 100% sure.

Start with the suggestion from steel breeze.

I believe GM purposely tries to fluster us. Then have a good laugh when we can fine a relay, or a gas pedal, or something...