I've been using my D2 with my stereo and love it. I have the Motorola car dock and use the D2 for music, movies for the kids, and handsfree calling. I'd like to do away with constantly connecting the cable up and am looking for a good bluetooth receiver that I can hook up to my stereo's AUX input. The AUX is connected through the back of my stereo and ideally I'd like something that I can power through 12v and have hidden underneath the dash. What would work well for this?