I did get the heat and vent (front seats) working. Had to replace my center stack with one that had heat and vent switches. Had to add a lot of wires to, and between, the yellow plugs under the seats. I have not worked on the rears yet, to get the heated part to work. On one side of the rear seat there is a 16 pin connector; and 10 pin on the other side (diagrams attached). The donor harness I bought to make the front seats work does not contain connectors for the rear seat. So, I'll need to build, or have someone build, harnesses to run from the front of the truck to the rear seat. I have installed the heat and vent switches for the rear seat in the rear of the center console, and replaced my console wire harness with one that has connectors for the switches. Also, I've added the necessary wires to the harness between the front of the truck and the center console connector. All that said, I've read that it's not possible to have the rear seat heat/vent option flashed to a truck newer than 2020. If this is true, I've wasted a lot of money and time.