I fitted the Parrot 3200 kit I bought it from "newministuff.com" they supplied a great little mount for it which looks like one of the air vents I will email you a picture if you like.
The sound quality is excellent and you can modify the wallpaper on the screen so I have added a mini logo so it really looks like it came with the car.
I looked into trying to retrofit the factory kit but could get no info on it.
Good luck with your project and make sure they send you good instructions with pictures showing you how to get the radio out.
