Hi guys, I am a real newb when it comes to electronics. What I am wanting is a Double Din DVD/CD/Radio/NAV/Backup Camera/Iphone hookup. I am liking the pioneers so far. My problem is, what do I need to integrate it with BOSE/Onstar/XM/Steering Wheel Controls? I hope this can be done. If anyone can give me some friendly advice I would sure appreciate it! And what kind of money am I looking at with all this(Ballpark) Thanks!