I installed my hu today and must say that it was a bit of a pita. The Volvo double din unit must be modified to accept your hu, and you need a trim ring for it (Not Included). I had to make one. Also, the new dash piece did not have the support brackets that the a/c controls attach to. I took care of that with some 3m doublesided molding tape. I still have a couple of adjustments to make on fitment and I would like to paint the dash piece to match the factory interior trim in the R as it did not match. Its a lighter grayish black. But, overall, its OK for just a little while tinkering on it after work. And the harness parts from Crutchfield are spot-on! Excellent stuff there.