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03-03-2004, 01:34 AM | #1 |
Try spinnin 4 rear tars
Join Date: Sep 2003
Location: Salt Lake City, Utah
Posts: 757
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Explain to me how factory AM radio is wired...
When I went and pulled my power brakes and brackets, I found a factory AM radio (not worth much to me I have hacked dash, but maybe to somebody esle). How in the world is this thing wired
I got the pigtail with it, the factory speaker and brackets were still there, but they were such a pain to get to I left them. On the back it says [12V (red), SPK (green), GD (blk)]. 12V of course is pwr... SPK would hook to the pos terminal of the speaker, correct? So is the circuit completed by grounding the speaker to the frame? Or is GD the speaker ground, and the radio grounds throught the frame of the radio? I was expecting 4 wires, not 3. I want to check and make sure it works before I try to sell... Thanks for the help!
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SWEET7T 1970 C10, 2wd, LB, 307/TH350/3.08. PS, PB Last edited by SWEET7T; 03-03-2004 at 01:49 AM. |
03-03-2004, 02:05 AM | #2 |
Account Suspended
Join Date: Mar 2003
Location: ** THE FALL GUY **CHICAGO IL
Posts: 5,883
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I WOULD EXPECT....yes it grounds thru the frame just like 99.9%
of every thing else on these trucks |
03-03-2004, 02:10 AM | #3 |
Try spinnin 4 rear tars
Join Date: Sep 2003
Location: Salt Lake City, Utah
Posts: 757
|
yeah yeah lol.......... is the ground wire the speaker ground??? And the radio grounds through the RADIO CHASSIS FRAME?!
I'm used to seeing a wire to ground the radio, and 2 wires (pos & neg) for the speaker =4 wires.....
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SWEET7T 1970 C10, 2wd, LB, 307/TH350/3.08. PS, PB |
03-03-2004, 02:11 AM | #4 |
Custer had a plan too.
Join Date: Dec 2003
Location: No. California
Posts: 344
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I just bought an original AM radio for my truck but I have not installed it yet. Here's how I tested without installing it to make sure it worked.
Power to "PWR" + speaker to "SKR" Power ground and speaker ground to "GRD" Everything worked so I assume its right. Hope that helps |
01-16-2015, 06:37 PM | #5 | |
Registered User
Join Date: Jan 2014
Location: arkansas
Posts: 186
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Re: Explain to me how factory AM radio is wired...
I have these. it's not obvious to me because labels don't line up.
Quote:
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