Quote, originally posted by vwdriver92 » hey gtiboy66, i was wondering how the alternator is hooked up, I no how to hook it to the battery but how is the field and indicator hooked up, I am wondering because I did a 1.8t swap into my a2 with a tec3 and I am running a the alternator from my old engine and I wanna convert to the serp belt,
and I cant find my bentley anywhere, From what I can tell is that the main post goes to the battery/starter, and then their is a 2 pin plug with small 18 or so awg wire, I think the one is for the indicator light and the other is for switched ign to charge the field
the back of the alternator looks like this, but mine is a 90amp not 120amp
Sorry But I do not know. Once its installed you should be able to test it with a mulitmeter. I did not take that part of the wiring apart.