I installed heated leather seats from a salvage 07 in my WT - it has no controls to operate the seats

I have the controls from the salvage truck to go in the door, but according to the A&I guide, the door controls plug into the door ecms, and they talk to the driver control module and the passenger control module to activate the seats

my truck as a WT does not have a passenger control module, by the guide i figured out how to make the power seats work, but the heated seats evidently require a tad more finess

what would be best here?

find a passenger module and order a underfloor harness and have the dealer reprogram everything to work?

find some aftermarket controls?

I can find heated seat kits everywhere, but nowhere offers replacement controllers....

is the a vender here that can hook me up?