So I opened up my console center to verify my AHU was there and not in the back, it was there..
I then opened up the rear panels to see where I need to transfer the AHU to and found something there already.. It might not be in exactly the same place, but I have what appears to be a heater core and motor in the back passenger location near where the AHU should be going.
I really want to get a salvage Explorer now to pull it apart.. See where everything goes.
Edit: Reviewed the
Component Locations, turns out I was not looking in exactly the right place. It appears it should be mounted a little further back on the same side.
Also, based on what I see connected to the AHU, there should be more cables that lead to the back of the vehicle than just the antenna module..