On the signal lamps: IIRC, there's really no separate harness for the signals. The main wiring harness has female bullet connectors - in headlight shell for front, under seat for rear - that have a dark green and dark brown wires that the signals plug in to. The signals themselves have a colored positive wire running through the stalk to the socket and the ground wires are a black wire with a ring terminal that goes over the stalk stud that plugs into a female 3-way bullet connector from the main harness (also black wire)
