Sorry m8, but I'm with Damo, with regards to the theft of the screen, if you can't nick it, break it. You can't watch The A - Team on a smashed screen.
I have often thought about doing the full screen action, 1 in each headrest, I on the head unit, awesome surround sound for it, and I would quite happily drive around with 80's Nostalgia, The A-Team, The Dukes Of Hazzard, and gentlemen's art for special show's and stuff, but again, it's the security of it