Well I wired up the dash on a 36 today. I have a bunch of nos switch wire terminals that I have been saving for ever. Check out the little green wire, the first step is to strip the cloth off of the wire, then split the exposed wire into two parts, then dip it in flux.
Then you crimp the terminal around the threaded part of the wire. and wrap the two pieces of twisted wire around the terminal. Once this is done, you can solder the wire.