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Old 09-07-2010, 08:51 AM   #1
73737373
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Radio Questions

Am trying to see if a couple of old radios work. Of course, there's no plug under the dash, just the part on the back of the radio where the plug is supposed to go. Looking at the rear of the radio, does anyone know which of the 3 contacts are what? Am assuming that 2 of the 3 are for the speaker, one is the hot one and the ground is through the dash? Thoughts?
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Old 09-07-2010, 08:01 PM   #2
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Re: Radio Questions

Moved to the proper forum
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Old 09-08-2010, 05:34 AM   #3
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Re: Radio Questions

Looks like we need to know the layout of the pins on the back of the radio.

Anyone got a pic of it I can save for my 'archives'?
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Old 09-13-2010, 02:38 AM   #4
red71c10
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Re: Radio Questions

The connections are (from left to right as you are looking at the back of the radio) Ground/black, Speaker/green & Power/red. Here's a picture of a speaker with the factory wiring that plugs into the back of the radio.
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Old 09-13-2010, 08:45 AM   #5
73737373
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Re: Radio Questions

Thank you. I used a plug from a 72. They're the same. The good news is that one of the radios works fine and the other caught on fire. Started to smoke when I turned it on...had that awful electrical burn smell in my shop all weekend.
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1968 Custom SWB, 327/3 speed OTC
1969 CST LWB, 402/400
1970 CST LWB, 402/400
1970 Sierra Grande LWB, 350/350
1971 Cheyenne LWB, 350/350
1972 Cheyenne Super LWB, 402/400
1972 Sierra Grande LWB, 402/400
1979 Silverado LWB, 350/350
1984 Suburban
1990 454 SS
1991 Silverado, X-cab, 4.3/5 speed Getrag
2005 Silverado Crew Cab
Corvettes: 75, 77, 78, 93, 96
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Old 09-16-2010, 02:40 AM   #6
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Re: Radio Questions

Quote:
Originally Posted by 73737373 View Post
Thank you. I used a plug from a 72. They're the same. The good news is that one of the radios works fine and the other caught on fire. Started to smoke when I turned it on...had that awful electrical burn smell in my shop all weekend.
Stop playing hot tunes through it! Seriously, at least one of them worked!
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1971 Custom 10 - 350/350TH - Pwr steering, gauges, Chrome front bumper, Chrome hubcaps, Door edge guards, HD rear springs (current)
1968 C-20 Custom Camper - 350/350TH (orig 327), Pwr steering & brakes, gauges w/tach (former)
1968 C-20 - 307/3sp column (Dad's when I was a kid)

"Driving is like coloring. Things get messy if you can't stay inside the lines."
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