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z2's memory not working


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The red wire from the unit is switched power which turns on and off with the ignition. The yellow should be connection to constant power which does not ever get shut off. The yellow wire powers your backup battery and supplies all the current for the unit when it's powered up. The red wire turning on and off is just a signal to "boot up the unit".

 

If the yellow wire and red wire are hooked to the same wire which turns on and off with the key, that will cause this problem you describe.

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