Ive tried to use this button and failed
Theres a circuit board inside that handle linking everything together
I did manage to find the pin on the armrest connector from memory it had 5v on it then 12v when pressed.
You might be better off drilling another hole on the rear of it but it will be tight to get a button in
I looked in the book and yes you are correct does have something to do with rpm. I’ve never used it tho.
Ok thanks for that info. Looks like I’ll put another button on the armrest.