Oh, yes, lots of guys have done so. Thomas Müller is one I met, only his english is probably not so fluent. But search for "Diagnose-Adapter" in the German section and you will come across people who are building these adaptors, and they will for sure be able and willing to give you a hand.

Andreas

Es war schon immer etwas teurer, einen besonderen Geschmack zu haben...