You go ahead and cut two of the wires running to the MAF, and use them to the new IAT sensor (Polarity does not matter). Those wires that went into the MAF were IAT, you're just breaking them out.. Here is the GM Pinout that you need to take the wires from the MAF:
D 0.5 TN 2760 Low Reference
E 0.5 L-BU 6289 Intake Air Temperature Sensor Signal
So connector pin D & E (Tan and LightBlue wires) go to your new IAT sensor. Once again polarity does not matter.
You wires are pretty dirty but looks like its the two left wires. I got this info sent to me from Matt Sorian and my AIT is working perfectly fine. Hope this helps