Those are better places to find brand specific upgrade info IME.
I have a 2000 Nissan frontier with stock radio. I want to upgrade to a stereo that will nicely adapt to a iphone or another type of mp3 player. I figure iphone because it would be nice to have a devices that does everything so I don't have to carry around multiple device's. I would like something that can hook up to my stereo unit wirelessly so that it would look neat in the car. I guess I'm looking for a bluetooth application for both devices. My search has brought me to the Alpine ida-x305 with an iphone4. i guess i'm looking for some feedback on this plan to see if it would work for me plus if anyone knows of a better setup for my situation I would be happy to hear about it. Any suggestion would be greatly appreciated.