Anyone have an interior one installed in a stock-ish interior? If so, where did you put it / how did you do it? I'm considering adding one while I'm rebuilding from the chassis up. Will be easier to do it now than later. Dick, I know how you did yours. And found another write-up of one done in the left driver air vent... Also... any preference of switch type?
Consider mounting it on the A pillar of your cage. You will be able to reach it & so will corner workers should you need their help on the track.