it just so happens that I wired mine up today.
you need an external regulator, I have a wiring diagram somewhere I'll try and dig it up
(all but Red go to regulator) ...
Red 12 ga B+ Hot Goes to main power terminal on your starter(which is direcly connected to the battery)
Brown 12 ga D- Right post on regulator
Black 18 ga DF Center post on regulator
Blue 20 ga D+ Left post on regulator
there is a wiring Diagram
here alternator is #3 regulator is #4