It looks like he rearranged the wire harness location for his climate control. It could not have been possible since the plug for the A/C climate control harness is right there where his new head-unit is.
That is a lot of custom work which you could venture into if you have kind of time.
If you want his set-up so bad why don't you ask him directly instead of making like 3 threads about it? Almost 90% of the people on here have stock setups so you're outta luck there.
Basically, a lot of bondo or resin that were used to mask the the front face. I have seen how they make the dash for the old Camaro. The location of the new cd player is almost the same as the oem cd player behind the dash, so all you need to do is create a new pair of brackets in the back of the dash.