okay so anybody on here work in a stereo shop? i read up in the pennysaver magazine everywednesday and see these shops selling dvd players and screens for hella cheap. like 2 headrests and a dvd player for $259. if i get that package, what would i need? i know if you go to the shop and want to get that, they'll charge you about $200 more to put it in your car. some decks need an fm modulator, but i dont need that cuz i have AUX input on my deck. is it hard to install it yourself? does anybody have websites with detailed instructions with pictures on how to install the shit?