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Message: <blockquote data-quote="KaeZoo" data-source="post: 2460439" data-attributes="member: 554753"><p>Even though the factory radio was working, you may have blown the radio constant power fuse in the vehicle.  Many factory radios will still work on accessory power alone, though they'll lose preset and clock settings when the key turns off.  Aftermarket head units need voltage on both constant and accessory wires or they won't turn on.  Check all vehicle fuses, even ones that aren't labeled as radio fuses.  Test the other constant power features in the vehicle to see if they're still working; clock, dome light, door buzzer, cigarette lighter.</p></blockquote><p></p>

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