I have a avicf900 and something happened with my remote start security system that constantly keeps power to my unit on while my keys are out and car is closed and locked. Obviously this is not beneficial to me at all because when I leave my car for more than a few hours my battery dies and i have to jump it. Is there anyway to turn the screen or the unit off at all through the interface? I havent found any sort of power off option or anything bout it in the user manual. Any help would be sweet.....