If some with a SS/SC, Sun Roof, and Onstar would be able to get me a pic and some approximate measurements of the area between the sunroof and windsheild, I would greatly appreciate it. I ordered my car the other day and I have decided to install a flip down touch screen. I just need to see what shape and size of area I have to work with before I start designing it. Any help would be greatly appreciated. Thanks in advance.