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Car Radios take very little energy to run, so it'll take many hours of non-use to kill the battery. It is probably the wiring of the radio that is wrong. The radio should fully go off when car goes off. There needs to be a positive a negative and a wire hooked up under the fuse box to allow radio to come on when car comes on and go off when car goes off. You should be able to figure this out by the color of the wires on your wire hareness (wire adapter for radio to stock connector.) or just bring your car and radio to a car audio shop and they can do it for you.

If so, it would only be a dead battery, and a jump start would get you going again.

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โˆ™ 2007-09-17 23:33:43
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Q: Would a custom stereo system cause the battery to go dead when your grand am is not in use 93 grand am se 2door V6 33l If so would it be bad wiring bad alternator bad battery?
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