If you're not using the ARB compressor for air lockers and prefer to just have an on/off switch under the hood, my post here may help.
https://www.toyota-4runner.org/3507426-post8.html
If you're ok with just having an on/off switch next to the ARB compressor within the engine bay, my post here may help
https://www.toyota-4runner.org/3507426-post8.html
I went through the same search process and didn't find exactly what I was looking for, so since I've figured out the simplest on/off switch setup, I thought I'd reply here. All I wanted was an on/off switch on the compressor...not sure why ARB doesn't provide an optional simple switch like this...
