Alright well, I got home last night and went ahead and took everything apart. Basically for anybody who come's across this wondering, I just cut all the zip-ties that were on the wire harness, and ran the wire all the way from the extruder assembly to the motherboard. Not really easy to get that wire in there! Then hooked the fan wires to that screw terminal block the same way I seen the other wire's hooked up, connected it to the missing fan spot. Boom, all set up. Not too hard really.