Hi - New to the forum. I recently purchased a 2022 RAM 1500 Limited in July 2022. I used to own a Ford and made the switch this summer. The truck makes an abnormal cabin noise that is a rumbling/droning noise that is present at all speeds and extremely loud at speeds around 38-40 MPH and on rough/grave roads. The service director at the dealership confirmed the noise issue problem and he also compared my vehicle to others at their lot. None of the other Ram trucks made similar noise. It has been in the dealership four times and they still cannot find the cause of the problem. They have ruled out ANC, tires, and replaced the exhaust. Still no change in the noise. I have seen post on droning noise caused by faulty ANC. Has anyone else experienced similar problem? Has Ram replaced vehicles with this problem? Thanks for help!!