can't figure out how to install my neutral safety switch on a Hurst Quarter Stick. I understand how to wire it but i can't figure out exactly where it should go. since i got this shifter 2nd hand, i am not sure if it was factory installed and the guy removed it or what... the shifter manual only has instructions for wiring. there are 2 different switches for the Quarter Stick and i know i have the right one, the smaller "boxy" style part # 2480021. any help or pics? thanks!