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Old 04-18-2010, 10:04 AM   #1
pugs
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stock GMC radio

does any one know which wires are which on a stock 12V AM radio. i picked one up and want to see if it works. there is 1 wire on top and 2 under the unit

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Old 04-18-2010, 11:35 AM   #2
PaDan
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Re: stock GMC radio

One of them will be the hot wire for the light wire. If you look at where the wires go into the radio there should be one that goes in a little hole that looks like a plug. This wire if you pull on it lightly will feel like a spring. The plug looking part comes out so that the bulb can be replaced. Then all you have to do is figure out the ground of the other two. You need to post a pic of the other side.

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Old 04-18-2010, 08:46 PM   #3
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Re: stock GMC radio

I can't remember from when I installed mine, but I remember that if you hook them up wrong brown crap drips out the bottom!
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Old 04-18-2010, 10:17 PM   #4
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Re: stock GMC radio

wheel i dont want to blow the thing up, just courious to see if it stll works so i can sell next sunday at the swap meet
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Old 04-18-2010, 11:40 PM   #5
JML55
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Re: stock GMC radio

Checked on my working GMC radio and the wire in your first pic is for the positive side of the speaker, negative side of speaker connector goes to body ground. The two wires coming out just below the display are battery 12v and lamp 12v. Just make sure you don't put battery power to the speaker wire. You most likely will need the hook an antenna to test the radio.
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Old 04-19-2010, 04:53 PM   #6
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Re: stock GMC radio

You'd get 4 times more for it on ebay than at a swap meet. Trust me. When I shaved everything on my gmc dash I was AMAZED what the stuff went for. $30 for a rusty old ashtray? You must be joking!
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