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Re: Dead Radio 900 1993

/// There are three possible sources of power to any radio. The lights controled through the dimmer, the memory which is always on and not controled by the ignition switch and the main power through the ignition switch. There also may be a second fuse in that power wire behind the radio. If all power is disconnected you get the theft code. To prevent this hook up a second battery through the cig lighter. (nine volt) Do not disconnect the memory when checking the main fuse behind the radio.

I have never found a radio without that second fuse but anything is possible. If the radio is on and the battery is even briefly connected backwards the transistor junctions in the radio will be destroyed. I have no idea if the security light would still be on in that event.






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