1sicklsx

iTrader: (1)

So i talked to my tuner and he suggested I find out through here instead of sitting on the phone and trying to explain it. I'm getting ready to have my car tuned for nitrous and am trying to figure out how to trick the iat via relay so that I can have a n/a tune and a n2o tune. He suggested this way instead of grounding a pin on the pcm. Also he uses hptuner so therefore cannot do the cos5 because that's efi live native. Can anyone help me with the wiring (diagram should be enough for me to go off of)? I think I have most of it figured out except for where the relay and iat splice. Which wire goes where? And do I need to use a 4 or 5 pin relay?