Had one of those rear entertainment systems from an A6 sitting in a box in my shed and decided to install the screen in the roof for my passengers and make use of the 750GB media player etc. The screen was from a grey interior car, so it matched the grey of the W12 pretty much perfectly. I had to remove the pillar trims and drop half the roof liner to fit it in, and it scared me to death when cutting the roof, let alone marking it out, as a new roof means a new back window (ouch). Ran the power to the front fuse box and I'm in the process of running the signal wires and headphone senders etc to the boot for the sony head control unit. The plan is to be able to watch whatever the car TV is watching or just select the media player.