1990 Suburban stereo wiring

[pie5566]

Hi, I just got done looking at the stereo in my suburban. I am planning an upgrade, but I have a problem. My dad got the stereo that is currently installed in there from JCPennys:crap:. Whoever installed it cut the factory wiring harness off and put this one on:verymad:. This means that I can't get a wiring harness adapter that has the universal aftermarket color-coded wires on one end and the factory plug on the other. So, what i need to know is what each color of the stock wire corresponds to. Is there a way to test this?

Thanks a lot

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[GreenBook 10+ year member]

http://www.autotoys.com/New_Tech/Wire_codes/GM_GMC_GEO_RADIO/gm_gmc_geo_radio.htm

I believe that should help you out.

 

[pie5566]

That's exactly what I needed. Thanks a lot. Now I gotta wait till Christmas to buy all of my stuff when it's on sale.//content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif

Thanks again

 

[pie5566]

Well, looking at that chart, I don't know what DIM means. I am assuming that ILL means dash light illumination, MEM in +12V constant and PWR is +12V accessory. Is DIM something that I am not going to use?

 

[GreenBook 10+ year member]

DIM means dimmer, it's the wire that makes the illumination of the radio become not as bright when you turn your headlights on.

Not all GM cars have that wire, I had to splice mine from another location on my car's harness to use that feature on my radio.

 

[pie5566]

So then what does the Illumination wire do? the stereo that I am planning on getting does not seem to have this.

 

[GreenBook 10+ year member]

The illumination wire sends it power to use lighting it up, the dimmer wire sends a signal to automatically cut that voltage back. Kinda like a remote wire sending a signal to turn on an amp.

What radio are you looking at buying? Every deck you look at should have an illumination wire.

 

[pie5566]

I'm looking at buying a Kenwood eXcelon KDC-X592. The manual is at here. Page 26 has the info on which wires go where.

 

[GreenBook 10+ year member]

On that deck the illum wire is the dim wire, it has an internal menu option to turn it on/off.

 

[pie5566]

So when i am wiring this thing up I am going to connect the ILL wire from the car (gray) to the Dimmer Control wire on the deck (orange/white). And I am going to do what with the DIM (brown) from the car?

Thanks for being patient with a noob:banghead:

 

[GreenBook 10+ year member]

yes, and nothing. Unless there is a wire in the physical harness the deck comes with that isn't listed, but i doubt it.

 

[pie5566]

OK cool, thanks a lot:veryhapp:

 

[dennit469 10+ year member]

sorry to see it is a suburban. there a pain to install head units in, suburbans and yukon espcially 97-03's are a pain to install wiring in the dash without completly pulling it apart, then running them to the back to the amp, DONT even get me started, its a real pain

 

[terra 5,000+ posts]

idk why I posted that