I stripped the wires out of a 12v wiring harness to wire mine in, but you can do it with all new parts. Relay trigger is right off the starter signal wire. Two wires on the one post. Power supply to the relay right from the battery, I used the stock fusible link. You can do that, or get something like a 70 amp fuse inline. I think its around 70 amp. 12v for the hold circuit, I soldered a wire to the fuel heater wire (blue w/white IIRC) before it goes into the PDC. Its a switched from the key, but is fused in the inside panel, so it shouldn't cause any issues. I used a big ground wire off the 12v harness and bolted it to the head where the lifting bracket is, 12mm bolt I believe. That should be everything to get it to work.