My 2020 Ram Laramie longhorn has been at the dealer for 20 days now attempting to correct the droning pulsating noise that starts at about 50 mph and gets louder as you go faster. It actually hurts your ears from pressure at interstate speeds. The truck has less than 5000 miles on it. Any help out there. Several star cases don't seem to be doing me any good. I love the vehicle, but am getting sorry I ever bought it.