If I want to sit on my lunch hour and watch a dvd with the key on acc mode as I don't want the engine cycling on while sitting in the parking garage, will the battery last for an hour or will it die? Especially if I watch up front through the Mark Levinson system.

 

if it is only an hour, probably not... but dvd+ml spend a lot of power so who knows.

 

well I can just watch from the back with the wireless headsets but trying to find out if I will have a dead battery afterwards.