Man, I can't beleive you would lose your AC controls just for that. Are you planning on living in your car? The head unit looks like an after thought, the screen looks like it's swimming out in the ocean. Nice idea, but a reeaallly crappy job. Sorry- Ok guys. My system is now complete. I must say that it was way worth it. Yes I have lost some functions but I never really used the on-board computer, so no big deal to me. The sound quality is that of a professional competition system, the resolution for the DVD movies and Playstation 2 games are just sick. Here are some pics and a link to my site with more pics. I will add full details as to each component installed and what the costs were. (I put this on the other board as well)