In doing this, or attemting to, you are going up against the mb engineers that invented this thing. I think that is risky as the krauts are, if anthing, redundant. There may be other domnsides such as the vin/emissions thing mentioned above. Don't think i would want to get into that situation. I prefer getting fca to rovide the damn part, in plug and play condition, ready to go. Again, i know nothing about how computrd work - proof is i started this in all caps. THE FORUM JUST OUTFOXED ME AND CHANGED IT, WHEN I HIT THE REPLY, TO THIS.