That's what I'm thinking of doing as well Bud. Do you have to remove the the grips to get to the housing? How are the wires routed from the housing?
No need to remove the grip. Simply remove the two screws from the housing and it will split and can be removed from the handlebar. I used just one wire from the soldered connection on the back of the circuit board to one of the terminals on the switch. To ground the switch I soldered a very thin copper wire to the switch's other terminal and ran it under a plastic piece inside the other side of the housing where it contacts the handlebar. This can be better understood when you remove the housing for a visual assessment of my explanation. There's plenty of room to run the single wire next to the gang of wires where they enter the housing. If you are unable to decipher my ground wire instructions, let me know and I'll pull it apart, take a picture and post it. I did it this way because it seemed a waste to run a separate ground wire alongside the other wire to a ground on the frame when the handlebar is right there and is certainly a ground.
My long departed paternal grandfather who was born in 1871 would surely be aghast if he knew I was sending assistance to an Englishman. My own father, born in 1910 wouldn't think much of it either. I'm so damn liberal though, I'd even help an Orangeman. Strange that both of the aforementioned gentlemen thought of themselves as Irishmen even though they were born in Canada and Chicago respectively. Neither of them ever set foot on the Emerald Isle either. I have been there back in the early 60's and shortly after arriving decided that I didn't like it and promptly set sail for England where the girls were prettier and food was better. Never thought I'd ever praise English cuisine because it's horrible, but it is better than Irish fare. I, on the other hand, always considered myself an American until some 30-40 years ago when I determined myself to be a citizen of the world. The advent of the computer has certainly had an influence on this consideration as a perfect example of this is happening right now. You and I are exchanging information as though we were in adjacent rooms when we're actually a continent and an ocean apart. Then consider who else is reading this drivel, could be just about anyone, anywhere.