shifted

Hi guys, Im sure everyone is going to tell me to search but i have spent hours searching and have not really found what im looking for. I have just purchased a used nitrous kit from my buddy. I plan on doing a wet 75 shot on my 01 is300. I still need to pick up a bottle heater and a rpm/window switch. My question is has anyone on here hooked up a nitrous window switch? By chance have a wiring diagram? I know it hooks into tach but does it also just connect to the solenoid? I also have a wide open throttle switch so just kind of confused on how that would work.

Any information from people who actually have experience with this would be greatly appreciated.