Hi,
I have the pin out for the screen, it seems to only accept RGB Sync which is a pain because most cheapy in-car DVD & reversing cameras are Composite and there isn't a cheap (~£20) way of converting the signal.
The upside of this is that you could fit a PS2 / Xbox / Pooter no problem but I have read that the screen is actually pretty bad...
I have found an option on my JDM OEM sat nav for 'VTR' which hints that you can hook up an external video source. I am planning on taking my DVD drive out today or tomorrow to get the pin-out for that as there is a glimmer of hope that the VTR input is composite.
I will post back and let you know, I will also post back the pin-out of the screen...
fM