Radio problems
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Joined: Jan 2011
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Radio problems
Took stock radio in 1980 F250 out and put in cd player. Hooked up to same wires as old radio. Rewired for new speakers. New stereo now only works when headlights are on. 
When lights are turned off then all the memory including clock has to be reset. Any help on this would be appreciated.
When lights are turned off then all the memory including clock has to be reset. Any help on this would be appreciated.
Senior User
Joined: Apr 2008
Posts: 232
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From: Port Saint Lucie FL
You probably have the 12 v supply lead connected to the ilumination input. On lead supplys 12 volt power to the radio and one lead supplies stereo illumination when you turn your lights on, those are probably crossed allowing 12 v power to be supplied to your radio only when the lights are turn on.
Moderator
Joined: Nov 2007
Posts: 22,415
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From: Denver Metro Area, CO
The original factory wiring:
light blue/red - dimmable backlighting (used on gauges & controls)
yellow/black-hash - switched, fused radio power
green/yellow - constant 12V for clock & station memory
black - ground
light blue/red - dimmable backlighting (used on gauges & controls)
yellow/black-hash - switched, fused radio power
green/yellow - constant 12V for clock & station memory
black - ground
Post Fiend
Joined: Jul 2004
Posts: 8,786
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From: Northern California
Radio Wiring diagram for 1980-1981:
http://i447.photobucket.com/albums/q...l/scan0004.jpg
Wiper Washer and Radio Dial Illumination Wiring 1980-1981:
http://i447.photobucket.com/albums/q...scan0003-1.jpg
http://i447.photobucket.com/albums/q...l/scan0004.jpg
Wiper Washer and Radio Dial Illumination Wiring 1980-1981:
http://i447.photobucket.com/albums/q...scan0003-1.jpg
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