Now, I’ve gone and done it. I’ve put handgrip warmers on the bike. The trick now is to get the wires connected to the right places. I think I did it right, but I’m testing them right now to see if all is okay. They got warm briefly, but with the high-beams on. I wired them to the high-beam circuit, but I was hoping to get the hot wire and not the switched wire.
I may have to move the wire to the low beams. In fact, I’m certain that I will have to. I just need a new wire fastener to do so, and then I can put the bike back together and ride in the cold!
Only… not tomorrow. It’s 9 degrees by some measures here right now. I don’t think that’s warm enough even for handgrip heaters.