any one know how to use a lap top or an external hard drive to store music for in car entertainment? it woudd be nice to use a lap top for in car use but i dont know how to do it yet. it'd be nice to use a lap top to play dvd too. i think the easiest way would be use an extrenal hard drive and hook it up to a in dash dvd player. anyways any one know how to do this? or any one know who i should talk to?