My power magic cuts off after 30 mins with batttery voltage at 12.8V i have it set for infinite recording and the voltage cut off at 12V. I cant seem to be able to figure out why it wont stay on longer than 30 minutes. The yellow Battery cable is wired to the dome light fuse and the Red wire is wired to the Air conditioning. The groung to the frame of course. This causes parking mode to be worthless. I am at a loss at the moment and any tips would seriously help.