have not been through a junkyard since looking for parts for my old fiat 850, but is it even possible to find 04/03 model x5's in local salvage yards? if so, if the time was spent to come accross a nice one, would it be worthwhile to yank any nav parts from such a car? like the mkIV and possible the 16:9? if so, do yards still charge a ton for those parts, so spending the time/effort to do the search would not pay off in the end?

looking to install nav in my 04 X5.

thanks for any info.