Well, the bugs keep on surfacing... The charge is gone. First I need to check the wiring to the alternator regulator: I installed a new one 3 years ago (however, the truck has only been driven a couple of times since and this became apparent when I installed a voltmeter) and I need to eliminate that I didn't mess up installation, as the colors on the wires did not match and the old one did not have letters on the terminals. This one has, so it should be easy to check. And since I can't find a wiring diagram which can help me, I need to ask you guys I assume I is for Ignition, which should be the green wire (which also is the only wire not coming from the alternator). A should be Alternator, and is connected to a yellow/white wire which again is spliced to a fat black/orange wire coming from the bolt connector on the alternator. Reckon that is ok. But then there is F and S, which I reckon is Field and Stator. There is one white/black wire and one orange/blue wire, which both comes from the same connector-plug on the alternator. So the question for now is: Which wire is stator and which is field?