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Wiring woes!
#117205 January 09th 2007 1:57 am
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I need some help on rewiring the stock stereo harness in my "new" (90) GMC. I have a new stereo, and would like to use the existing wiring to the old speakers, for now. I got an adapter from Best Buy for '88-04 Gm vehicles, and that plug doesn't look anything like the plugs that came out of the back of this old stereo. This stereo is the huge one with the cassette deck and equalizer built in. State of the art, for the day. Unfortunately, it no longer functions properly. I got a new Kenwood unit, and no time to install the thing with existing wiring. I don't know where the old wires go. Too many plugs. If anyone has an idea about the different colors, I sure would appreciate it! Thanks!


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"When life gives you lemons, make lemonade. Then, find someone whose life has given them vodka, and have a party!"-Ron White
Re: Wiring woes!
Redman #117212 January 09th 2007 3:48 am
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pooh-bah
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I bet it uses the older harness, much like the one that was in our 88 G-20, it was the same as the one in our 90 Caprice, look at Walmart. The seperate small socket (2 wire) is the light and memory wire, I recall that much, believe the speaker wires are color matched to the aftermarket radio's.

Re: Wiring woes!
maples01 #117287 January 09th 2007 5:08 pm
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Posts: 1,097
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Here is a link that has the diagram for you . The site is called the12volt.com It is a great reference for color codes and wiring diagrams.

http://www.the12volt.com/installbay/detail.asp?info=alarm&year=1989-93&make=Chevrolet&model=Van%20(fullsize)&ID=581&type=Stereo


Hope this helps


Take Care, Billy

Have Van Will Travel

Re: Wiring woes!
maples01 #117296 January 09th 2007 5:50 pm
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Posts: 5,168

Vanaholic
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Randy..hey man..don't you know better than to work on things..leave it for the pros..LMAO.. The new harness should plung into the old plugs that you removed from back of stock radio, the stock should of had multiple plugs come out of it one for speakers and other for power/antenna and so forth. If it is the wrong one all the brown and green brown are speakers, yellow is hot I beleive.


Darrin Bentley
Chairman 2015 Nationals
Director: Vanatics Van Club
Member of Bad Boys of Illinois
92 GMC 3500 454/4bbl


roiboi65@yahoo.com
www.cardomain.com/ride/2385823/1

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Re: Wiring woes!
vanatic05 #117305 January 09th 2007 8:23 pm
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Posts: 1,097
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1989-93 Chevrolet Van (fullsize) Stereo Information
Constant 12V+ Orange
Switched 12V+ Yellow
Ground Black
Illumination Gray
Dimmer Brown
Antenna Trigger Pink
Antenna Right Front
Front Speakers 4" x 6" Dash
Left Front (+) Tan
Left Front (-) Gray
Right Front (+) Light Green
Right Front (-) Dark Green
Rear Speakers 6" x 9" Rear Doors or 4" x 10" in the Rear Corners
Left Rear (+) Brown
Left Rear (-) Yellow
Right Rear (+) Dark Blue
Right Rear (-) Light Blue

Last edited by Billvill; January 09th 2007 8:24 pm.

Take Care, Billy

Have Van Will Travel

Re: Wiring woes!
Billvill #117345 January 10th 2007 12:22 am
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stranger
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I have this exploded view that probably won't help.

http://myspace-781.vo.llnwd.net/00496/18/73/496073781_l.jpg


Chris "The Blizzard of Hoz" Hosner
Re: Wiring woes!
Chevy Van #117386 January 10th 2007 12:35 pm
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old hand
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yep exploded view


aka Blue Heaven 77 gmc
Re: Wiring woes!
Mr Truckin #117391 January 10th 2007 1:01 pm
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That exploded view look familiar...

teardown:
[Linked Image]

reassembly:
[Linked Image]

[Linked Image]

and when good wiring goes bad...
[Linked Image]

Hope yours works out well.
Tom



...what's good fuel mileage got to do with anything???
Re: Wiring woes!
chevygod #117478 January 10th 2007 10:38 pm
Joined: Feb 2006
Posts: 2,224
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Nuttin' a 5 gallon can of Gas won't fix


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