One wire won't charge till you rev it up some, something like 1200 rpm, but charges at idle after that. You can run the big red wire (10 gauge) to the battery plus side and some cables have a small wire sticking out to connect stuff too. OR, you can just go down to the starter cable where it hooks on the starter and use a ring end to put it on there. OR, you can take off the reg you have and connect the two red wires toghether there and that will allow your gauge (volt or amp) to work and feed other things maybe inside. With that last part, just use the same wiring as what's there for old one, just take out the regulator. This worked on my 54, should work on most, I think. OR, why not just plug all the wires back into new alt, and remove the reg outside as noted above. Saves running new wires.
