I want to add it as well. I’ve purchased the handles. If you have push button start, your truck already has the required antennas, and RF hub.
The handles have 2 wires, then connect to the RF hub harness. Then, the BCM needs to have passive entry enabled. I did this myself with Alfaobd.
Next, you need a dealer, or a witech2 to reset/replace the RF Hub config. Can’t do this yourself, because it requires a 24-hour expiring rolling code pin. Same pin to add new keys.
The “reset” tells the RF Hub to download the new truck config from the BCM, which contains whether or not passive entry is installed. Otherwise, the wires stay dead.
I’m working with a dealer to do this for me now. I’ll post up once I have them working.