Well the OEM fans are 2 speed, high & low, and the new fans are a single speed.
I would say, connect the OEM fan ground wire to the new fan ground, then pick one of the 2 remaining wires as your control source from the factory switch, this will then turn the new fan on from either the High or Low position OEM switch. Leave the switch on the new fan in the on position permanently.
Repeat the same for the other side.
Or just return those fans and buy 2-speed fans.
2005 Providence 39L, Spartan, CAT 350
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