I had grow a pair and drill four holes through the painted firewall for the Chrome bulk head. Then I had to cut a large hole in the dash for the controls (also painted). The control panel only fits right where its at. The wiring is splitting the Evaporator openings and is jambed back as far as possible. Also the speedo cable is sitting on top of the evaporator. I blocked of the center port and just ran the two outsides and the defrost.