Here goes. I have a 1996 Chevy Tahoe with factory head unit and a Memphis subwoofer. I am thinking about getting a DVD player and 1 or 2 LCD screens. If I get screens like this: do they run off of RCA cables or what? This is the style of DVD player I am considering: OR So the questions are, how do the screens get the feed from the DVD player, does Legacy make a decent screen, should I go with the BOSS or Blaupunkt DVD player Thanks!