Greetings, I am looking at potentially replacing my head-unit in my car to something that can access my phone's media. Does the X10 allow playback through USB? This would be ideal, as it would charge the phone, and playback at the same time. Anyone have any experience with Bluetooth Connectivity via a phone and car stereo? From what I've seen, the BT connection is normally used for phone calls... Is the limitation on the phone end, or stereo end to prohibit streaming media? Clearly the X10 can stream media via BT because I have a BT headphones that I use for music and phonecalls all the time. Any input is appreciated. Thanks.