Stereo Problems - Team Camaro Tech
Electrical & Wiring Troubleshooting electrical.

 
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post #1 of 7 (permalink) Old Mar 29th, 06, 12:42 PM Thread Starter
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Rodney
 
Join Date: Apr 1999
Location: Banner,Ky,USA
Posts: 137
Stereo Problems

Installed a stereo in my boss's 84 Buick Playtoy. Got the head unit installed and have the speakers laying in the back seat, sounded pretty good(only had the key turned back, never started it)! We moved the car out of the garage today and when we started the car, had massive amounts of interference. What can be done to remedy this problem? Do I install a "choke" or something of that nature to cut this out.

Thanks

69 RS Camaro (383,700r-4,12-bolt w/4.11s)
79 WS6 Trans Am (406SBC,factory 4-spd,3.23 posi)
87 GTA Pace Car Clone (350TPI,700r4)
97 Bonneville SSE 40th Anniv. (3800 V-6,All Power)
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post #2 of 7 (permalink) Old Mar 29th, 06, 01:11 PM
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Location: McKinney, Tx
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Re: Stereo Problems

What did you hook the main power wire to on the fusebox? If you hooked it to some kind of running electrical accessory, like the A/C or heater fan, you can get this kind of interference, especially since it probably wasn't active when you tested the radio last night, and was running once you started the car. They also make power wire "filters" to eliminate such noises, but I would check that first.
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post #3 of 7 (permalink) Old Mar 29th, 06, 02:22 PM Thread Starter
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Rodney
 
Join Date: Apr 1999
Location: Banner,Ky,USA
Posts: 137
Re: Stereo Problems

I hooked it up to the factory power wire for the stereo, I think. All the wires are just a mess of spaghetti under the dash. The heater controls are all gone, the stereo connectors are cut off. The computer is removed, more wires. But I am pretty sure that I am into the factory stereo wires, the fuse was removed before I started(had no power), added the fuse and it had power so I am assuming that it is the stereo wire.

Thanks

69 RS Camaro (383,700r-4,12-bolt w/4.11s)
79 WS6 Trans Am (406SBC,factory 4-spd,3.23 posi)
87 GTA Pace Car Clone (350TPI,700r4)
97 Bonneville SSE 40th Anniv. (3800 V-6,All Power)
Check out my site at

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post #4 of 7 (permalink) Old Mar 29th, 06, 02:33 PM
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Location: PA
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Re: Stereo Problems

Two questions. 1)Were you playing the radio. 2)Was the hood open.
There's a metal tang usually at the firewall that grounds the hood when it's closed. The antenna will pick up all of the ignition noise when the hood is up and ungrounded. I ran into this on an '84 Camaro. After installing a stereo I had the hood open to reconnect the battery cable. I started the car with the radio playing and the noise had the owner giving me dirty looks. Closed the hood and like magic the noise went away.

69 RS 355 Tremec 5-Speed 4.11's
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post #5 of 7 (permalink) Old Mar 29th, 06, 05:30 PM
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Jim
 
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Re: Stereo Problems

What brand of radio is it. Some do require noise supporessors in the power line while others already have them built into the unit or are designed not to need them.
With you saying the wiring is a bunch of spaghetti under the dash you may want to try going to a different point with the ground wire off of the radio, try unplugging the antenna to see if the noise is better or worse, or if all else fails wire the radio into a known good car or try wiring what is in the car now right up to the battery temporarily to try and track down the problem.
I know too on the older GM's there were two gray wires (one was for speakers another for dash lights) and also two yellow wires (a rear speaker wire and an ignition 12V wire). Did you do a complete test on all of the wires to verify what did what or did you just start trying combinations.
You might also have a shorted to ground speaker wire.
Jim

1974 Spirit Of America Nova (being restored), 1973 Nova Custom, 1968 Chevy II (Garage Find 2012)

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post #6 of 7 (permalink) Old Mar 29th, 06, 06:20 PM Thread Starter
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Rodney
 
Join Date: Apr 1999
Location: Banner,Ky,USA
Posts: 137
Re: Stereo Problems

It is a Pioneer Cd Player. The hood was closed. I will try unplugging the antenae & probably go ahead and change the ground.

Thanks & I'll let you know

69 RS Camaro (383,700r-4,12-bolt w/4.11s)
79 WS6 Trans Am (406SBC,factory 4-spd,3.23 posi)
87 GTA Pace Car Clone (350TPI,700r4)
97 Bonneville SSE 40th Anniv. (3800 V-6,All Power)
Check out my site at

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post #7 of 7 (permalink) Old Mar 29th, 06, 06:21 PM Thread Starter
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Rodney
 
Join Date: Apr 1999
Location: Banner,Ky,USA
Posts: 137
Re: Stereo Problems

And I did use a tester to check all the wires, had to tape a couple off.

Thanks

69 RS Camaro (383,700r-4,12-bolt w/4.11s)
79 WS6 Trans Am (406SBC,factory 4-spd,3.23 posi)
87 GTA Pace Car Clone (350TPI,700r4)
97 Bonneville SSE 40th Anniv. (3800 V-6,All Power)
Check out my site at

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