Ford Mustang Forum - View Single Post - "check charging system" intermittent computer display
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post #3 of (permalink) Old 01-29-2014
Hellraiser456
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Joined: Feb 2009
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Radios will draw a small current for memory...its really small though. You could have hooked it up backwards, bu then the radio won't turn off with the ignition. By the sounds of it, its not the radio

If the battery checks out fine, check the alt. I have heard of wiring and other connections around the alternator going bad, especially in earlier years. Check the wires may lead you to your problem. Otherwise, these cars have somewhat weak alternator
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