When I hit harsh cracks, bumps in the road I get a loud resonation in the cabin that sounds like being in a bass drum. I'm guessing one of the larger panels is resonating, but I haven't been able to narrow down the source. I feel like a well placed sheet of dynamat would solve the issue. Is anyone else having this problem? I say "problem" because it was not present in the two grenadiers we test-drove.
