Can somebody please explain what the Johan / Jersey Boy tunes are and how it works in simple terms? Is this associated with the Diablo devices? If so, how specifically? I've been searching around a bit, but keep running into false hits on the keywords. If there's already a thread out there explaining how it work, please send URL. Any pros/cons compared to the pre-canned tunes within the inTune? What's needed to get one of these going? Thoughts/recos? Thanks for taking the time to 'splain it.