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    Low voltage accessory wire on old Mitsubishi Magna 98

    Hello, I am attempting to install a Alpine head unit to a 1998 Mitsubishi Magna Wagon. This is what I have found so far: * The yellow acc line is 0.2 V when ignition off and 0.4 v when ignition set to acc. * The red power line drops about 0.2 V to 12.1 V when the ignition is set to acc...