I appreciate the response.

I thought I could get the wiring ends off a donor and interconnect as required, but maybe I'd be better off getting a loom. There was a new/unused 2001 Navigator dash harness (part # 1L7T-14401-AJ) on eBay. It did not sell, but hopefully is still available.

I'm not too concerned about the add on sensors, but need to find how to tap into the existing vehicle speed and coolant sensors, and without affecting existing components.

I understand that the blower speed control module is different, but it seems to control the same (existing) blower. Likewise it seems that the plenums and actuators are the same, but the EATC control applies vacuum instead of me twisting a ****. Logically, the Ford engineers would design this way, but who knows? Actuators wouldn't be too big a deal, but if the "inards" are different, it would be.

I'm also assuming that steering wheel remote control and rear defroster circuits can be left open. I hope it won't trigger the SES light.

Thanks again,
Brian