Fan relay and sniper install

Update: I have figured that I am going to run two relays for the fan. One for each speed. 30 and 87 will be the big power guys and 86 keyed power and 85 will go to the efi for ground interrupt. I am planning on leaving the pressure switch for the ac alone for now to see if it activates the fan either through its own circuits or that the engine reaches temp and turns on the fan through the efi. that temp I can set through the wizard during setup. If I am not happy with this scenario, I will add more relays to trigger the fan through the pressure switch. Does this sound like Im on the right track? I will bench test this scenario before hooking up to efi to make sure I am not backloading the efi with power. (yes, I said backloading):rolleyes:

Thank you,
Sparky