I am still looking into a Land Rover Discovery. The problem is on the new 2000 model, it appears that it is not a standard 2" DIN. It looks a bit taller. My questions are:
1) What would an installer do to take care of this problem?
2) Would what ever he does hold up to the constant in-out motion of the box? would it be able to handle the jarring motion of the sleeve?

I was also looking at the Jeep Grand Cherokee, but that also looks like something other than the normal deck. Tell me if I'm wrong:
http://www.jeepunpaved.com/grand_cherokee/frameset_grand_cherokee.html
then click on "Features"