Backup Battery In Trunk For AV Equipment?
 

Say i was to get another battery, make an enclosure for it in the trunk, and put on some of those dc to ac plug convertor things on it, and have them power a dvd player that could sit in the trunk hooked up to a small lcd screen inside? How many dvd watching hours could i get out of that do you think? Thats if it would work. It would be a hell of a lot easier for me to rig my own little AV system then buying those expensive as hell ones.

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