Tell them to reverse the leads on the door speakers. This can be done by repinning the wires at the ANC module/amp depending on which stereo system you have in the truck that way you do not have to pull the door panels. The ANC signal is out of phase by 180 degrees instead of cancelling the noise by producing the tone 180 degrees out it is reproducing a tone at the same phase and is causing a drone. Here's a link to mine from a year ago. I replaced all the door speakers and ended up with a drone after replacement because the wiring diagram in the manual is actually wrong and all the door speakers were reverse phase. Pulled the door panels and reversed the leads going to the speakers and the drone went away.
In the one of the videos the truck is parked with the window down with the RPM held at 2500, I roll up the window and the drone starts a little bit after the window is closed. The drone seems to be very RPM dependent.