[Fiddyfoe]

I have the same problem seeing the lights on the switch.   I have my 2018 VV apart right now, so took a picture of the backside of the switch.  A lot of wires come out of the switch, but I would only need 1, or 2 positions, since even on low I find mine gets too hot.  If you figure it out, please post your method of wiring.

I could see the picture you posted. With 6 wires, probably would have to apply the multimeter and see which wires have voltage as the switch is cycled. I would hope I could isolate a single pair to hook to a toggle switch. Not sure changing the switch is enough motivation by itself to do the disassembly!

Can’t help on switching the switch. My MO is to brace my hand and count clean pushes on the button. Don’t try it on a bumpy stretch. Off-3-2-1 is the cycle, of course. As a barely related side issue, I mounted an oil press gauge above my seat heater switch and managed to get some very small aluminum bits in the switch and it jammed on 3, in Fl, in Jul. They were kind enough to install one in the passenger side of my Speedster that I had taken out to pass some wires and I swapped it out. Don’t have to disassemble anything as it pulls out of the dash with enough wire to be able to work it easily. Cleaned the contaminated one and it’s now in the spares bin. The switch is environmentally sealed, but below the button which bounces on a sealed micro switch that is so weakly sprung it barely gets the button back out of the way. So, mind the debris around them, either yours or nature’s. Luckily it pulls out of the dash smartly and is a push/click disassembly to clean the button and button socket. The rest is sealed.