I mean, if it works, I might try and use one to replace replace some of the system in my car so that I can retain bluetooth connections, but increase steering wheel button functionality.
Of course, the underlying problem is that the head unit and central display in the MS6 is so rudimentary that it doesn't display what the next track is (except track 01, 02, etc.), even if you can use the track buttons on the wheel. It's actually better/easier to use a phone/ipod/etc. via bluetooth mounted to the dash somehow.