I actually installed it a while ago, but haven’t updated the site in a long time...
I wanted to have a way to stop the Leslie from spinning and use it as a stationary speaker, so I went to Chase Pitkn (when it was still open) and bought the last light switch they had for about a dollar.
I mounted it with L brackets under the right side, so it is out of the way and I can stop it whenever I want to. I ran some wires from the switch to the Leslie’s amp and connected it to the brake accessory outlet, so I didn’t even have to tap into any wiring.