I really want to get the Alpine iDA-X100 for my car. I know you have to buy a separate bluetooth adapter so I can use the hands free feature...so my question is, does it work okay? Sound quality, echoes...etc? Also, I read on another thread that when you connect the iPhone 3G to the deck, it gives you a message about incompatibility, but it still allows it to work. I just want to make sure this is correct b/c the only reason I'm upgrading my car stereo is to be able to connect my iPhone to it. Any feedback is appreciated! Thanks!