I'm probably going to be using the droid as my mp3 player but I might run into a problem using it in my car. I use a casset tape adapter in my car when using my ipod. The Droid has the right size jack but what happens when im listening to music and need to answer a call or use voice. Will people be able to here me through the speakerphone microphone and voice come outa car speakers? I would hate to unplug my audio and grab my phone off the dock just to answer a call when driving. Or maybe somone has made a special adapter just for this situation.