I've got a '92 300SD. Bad wring! I've got a ±2 amp. draw on the battery with the car sitting doing nothing, trunk and hood closed along with all doors. I've located the circuit (F17) which seems to be the problem. Now I need to locate connection block (Z7/19). I've got WIS/ASRA, but I can't for the life of me find anyplace where they show component locations. Do these MB mechanics come knowing where everything is? I doubt it. Does WIS show them, and, if so, how do I get to them?