This is exactly what I was looking for! Powered by cigarette lighter socket, it connects to the entrance to the car radio (both sockets are in the armrest, its relatively small size allows a discreet and unobtrusive installation), and no need to take it out of the car to recharge. Automatically connect to my phone as soon as the decision is on. There has few disconnections from time to time, but I think it comes from my phone. One can actually detect a pretty average audio quality (breath), but only when stopped (and music!). Delighted, long may it last.