I have been doing some reading and have seen others state that even if the M4 is turned off it can drain your battery if a few days if not being driven. I do have a battery maintainer to put on my battery for when I store it so I can have it on there to maintain the battery but is there another way to wire up the M4 so when the car is turned off to stop the drain of power because of the M4. If anyone can help I would greatly appreciate it.
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M4-ATX battery drain