Radio Blows Fuse

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texasmike

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I have an AC Delco radio which has been tested at a local repair shop and shows to be in good operating condition with all four speaker outputs working. When I connect the three plugs in the back of the radio, along with the antenna lead, with the key in Acc the 15amp fuse blows when I turn the radio on.

If one of the speaker wires had the polarity reversed, could this cause the fuse to blow? Thanks for any help or ideas.
 

dvdswan

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Speaker wouldn't cause that. If the radio is good, I would look at the power wire going in and ground wire coming out.

If you question the speakers, pull one plug at time for the front and rear.
 

texasmike

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Thanks, that's what I thought so I will get someone to help me check that out. The truck has been sitting for 14 years with the original radio in it. No one has messed with it so I can't imagine what could have gone wrong with the wiring.
 

Snoots

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Send pic of connector and wires and, back of radio.

Crossing speaker wires should not cause the fuse to blow.
 
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Charlie

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Thanks, that's what I thought so I will get someone to help me check that out. The truck has been sitting for 14 years with the original radio in it. No one has messed with it so I can't imagine what could have gone wrong with the wiring.

Did the original radio work? Possibly rodents ate wires somewhere.
 

texasmike

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The original radio did not work and I found another one on ebay. That is the one I had checked out when the fuse kept blowing. You may be right about damaged wires so I plan to check that out. Thanks.
 

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