just want to update in case anyone else wants to wire them up without buying a harness for them. i contacted zirgo to confirm that hooking them up in series is ok to do without hurting the motor of the fans as they will be only using half the voltage and they said it was ok to do. so i will be wiring them so they both kick on at low speed (series which=6v each) and both at high speed (parallel which =12v each) All you need is 1 SPDT an 2 SPST RELAYS. here is a diagram to hook it up with the exception of the pcm pinouts depending on what pcm you have. thanks for the input guys.
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