I hate the H1's. To be as big as they are, there is no space to hide electronics. Also converting my 2001 Tahoe's dash to the 03-06 dash was very time consuming. But I'm very anal about the looks of my truck, so it had to be perfect.
Hey shotgun, I did the same thing in my Suburban. How did you get your climate control section so centered? I need to work on that with mine.
I cut out alot of the sub dash that's behind and below the radio and a/c controls. The a/c controls were moved down 9/16" and the dash bezel was filed to allow clearance for the vent and rear defroast buttons.