Each pigtail uses thick 10 AWG wire. We have seen pigtails using much thinner wire which is unsafe for running the fans. The black wire is ground and red is for power. Super simple. These connectors are used on most 2005-2012 GM Trucks.
Steering Universal U-Joint Coupler 13/16 -36 Spline GM
MSD Style Wiring Harness Cable MSD Distributor to MSD -6 6AL Box 36" Long 3FT
Lokar Throttle Cable Hi-Tech 3ft Braided Stainless Natural for GM LS-Series
Lokar Throttle Cable Hi-Tech 3ft Braided Stainless Polished for GM LS-Series
x2 Genuine GM 55579102 Throttle Body Heater Outlet Pipe CHEVY,CRUZE,SONIC 1.8L
15"x2" Polish Aluminum Full Finned Air Cleaner Nostalgic For GM SBC BBC Hot Rod