I am trying to monitor a house bank and starter battery with my BMV 602. Does the negative from the alternator go to the "load / charging" side of the shunt or to the neg post on the starting battery? I know that I need a cable from that post to the "load / charging" side of the shunt, but I cannot find a clear schematic that includes the alternator. In fact, I have found contradictory schematics and need a definitive answer please!!