to answer a couple of PM's I got...the screen works fine to play region 4 encoded (australian) dvd's, and can play PAL or NTSC dvd's that are burnt copies. The unit itself can also do divx, mp3, wma, etc. The headunit does the work in converting the final signal to NTSC so that it can be output onto the GTR's MFD which can only show NTSC (PAL signal makes the screen B&W and interlace).
the cable that Chris has makes a RCA socket available on the MFD, no soldering or anything like that needed. Just pop the MFD out and connect the cable up to the composite out on a headunit. Just make sure the headunit you have can output to NTSC and all you'll need is the cable.
here's a dodgy phone pic of it in action...