Fredo,
Here is a scan from the X5 UK brochure. Prices are not that bad for a DVD changer but once you add it all up and add a quick £800-1000 of labour it starts looking different
I am looking at some high quality local installers who might be able to offer a full Alpine system for a similar price. THe RR Sport has a nice factory integration system I must say with full control from the front, that's really what I would like to have along with Hard Disk based video...
Not decided yet if I am going to waste £2-3k on it tho.
C