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Old 07-18-2016, 09:08 PM
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N2IXK N2IXK is offline
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Join Date: Apr 2011
Location: Sittin' on the "Group W" bench...
Posts: 799
The Ignition Off Draw fuse powers the constant 12V input on the radio. This retains the station presets and the clock when you shut the ignition off. Also feeds the ECU, the keyless entry module/security system, and any other electronic loads that need constant power for backup.

It sounds like something on that line is drawing way too much current. It only carries a few milliamps of load under normal conditions.
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