I switch it on, then just put the speaker in. It BT connects automatically. It fits snug and once in I control via iPhone volume /mute. I see this a good option for odd times when driving longer distance etc (like for me driving on autobahn to Zurich, Amsterdam, Calais etc. I remove it from the radio aperture when not in the car and hide it as best I can. I suppose ideally having the switch at the front would help but then that would spoil the clean look. But for shorter and open-top driving (yes, my Speedster has a trad hood), I only listen to the engine (and my wife - obviously)..
