I actually like to cut off the Phone part, but I don't talk on the phone much in the car, and I hate it when people talk to me through their car, so I avoid it. Haven't seen the problem with having to manually connect every time, it just jumps on. I'm on Android 3.2 I think. old phone, no future updates planned because my provider sucks.
the music thing...continues. I attempt to keep it on a song I can actually "explain" when it blares out in my garage at work....that day it started busting out some death metal, I got some looks.