I am up against the same thing with my conversion. I don't know why isuzu didn't put any colors in their wiring diagrams. I have the factory service manuals, and nothing <img src="/forums/images/graemlins/frown.gif" alt="" />

I am going to get it figured out this weekend and I'll let you know though. I think I can figure out what wire is what with my voltmeter.

One should be the exciter (keyed power), probably the larger of the three. One should be the feild, and the other is probably for the dash light.

Tough Guy, Inc.