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Author Topic: radio wiring???  (Read 3431 times)

Offline 75 C20

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radio wiring???
« on: May 07, 2006, 07:03:00 PM »
I just got a radio out of an 82 for my 75. Its got a bunch of wires but i kept it so i kno which ones are for the speakers (all but 3) The 3 that are left are BLACK,  GRAY and dark YELLOW. I assume they are all power of some sort. Is the black ground? Is either the gray or yellow for the radio itself and the other one for the light in it?? Any advice will help.

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1975 Custom Deluxe 20 350 SM465 2WD Longbed
1979 Custom Deluxe 20 400 SM465 2WD Longbed
1968 Custom Sport Truck 20 327 TH400 2WD Longbed
1985 Silverado 10 305 700R4 2WD Longbed
1969 Pontiac GTO 400 Turbo350
2008 GMC 2500HD 6.0 6spd 4X4 Longbed

Offline toplessblazer

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Re: radio wiring???
« Reply #1 on: May 07, 2006, 11:19:00 PM »
Black is ground, Yellow should be for 12v and I believe the gray is the positive input for the illumination.  

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Offline 75 C20

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radio wiring
« Reply #2 on: May 10, 2006, 04:11:00 PM »
i put it in last night and it worked great. Thanks for the help.

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1975 Custom Deluxe 20 350 SM465 2WD Longbed
1979 Custom Deluxe 20 400 SM465 2WD Longbed
1968 Custom Sport Truck 20 327 TH400 2WD Longbed
1985 Silverado 10 305 700R4 2WD Longbed
1969 Pontiac GTO 400 Turbo350
2008 GMC 2500HD 6.0 6spd 4X4 Longbed
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