Hi all,
Having spent hours trawling through websites, I think I've finally found what this part is. If somebody could confirm it for me or correct me if I am wrong, I would be grateful. It sits at the bottom of the rear heated screen, attached to the two connectors on the glass screen itself. It is powered, obviously, by the tailgate wiring.
The part in question is this:
http://mkivsupra.net/vbb/attachment.php?attachmentid=153192&stc=1&d=1339355942
The only part I have found which looks anything like it is this (Part: 90980‑05274, from here):
http://mkivsupra.net/vbb/attachment.php?attachmentid=156290&stc=1&d=1344961629
Anybody know if that's what it is? Or if not, what it is..?!