Well, it is a Farenheit lcd and player (farenheitusa.com) and unfortunately when I bought the LR3 used it had no manuals with it, but I believe it is what they call a 6.5" screen, but the dimensions make no sense to me when you measure the screen itself. It is not hooked up to the factory head unit perse, or the aux connector. Acutally it has a wirless transmitter for headphones mounted on the ceiling and it comes with a switch that is mounted in the blank spot behind the parking brake lever that is an fm modulator. All I have to do to hear sound through the speakers is tune to an fm station of 8x.x (i can't remeber) and it plays wirlessly through the speakers if you want. The lcds have buttons to select one of two inputs, so theoretically you could have 2 separate movies playing if you had another portable player and hooked it up to the video 2 connectors on the front of the dvd player. I think this is a relatively inexpensive setup compared to $1800-$2000 for the Rosen. The dvd player is like $80 on the web and the lcd's are maybe $225 each. The wireless headphones (audiovox here) and labor add some cost I'm sure, but I'm telling ya, this doesn't cost "that much"