I have noticed a lot of posts regarding the instalation of an aftermarket head unit in the new Devilles'. I have done several of these and created accurate, detailed, and easy to follow wiring diagrams to help guide through this process. I have tried to post them on Cadillac Forums but I allways get a "file too large" message. It is difficult to explain to each individual person without them actually seeing the diagram. It's a Microsoft Word document(s) with 3 immages, if there is a way I could post this I think it would help out alot of people. Let me know, thanks.