When I got the machine home, I pulled both front fender assemblies off and spray insulated all of the openings then put black gorilla tape over them. I pulled the front corner windshield area speakers and put foam blockers and sealed everywhere so no air come through the speakers also. I used foam at the front door latches to seal them when driving.
I pulled both tunnels and insulated them with pipe insulation then used pipe insulation on all the coolant pipes. Did a few other things also.
Before I did all of that mine was still a lot better than by two buddies 2024 1500 crews which did not have the above factory installed
insulation.