I spent a week super-insulating my motorhome. Sprayed sound deadening and applied high-end Dynamat under the hood, in the doors, under the carpet, inside the engine compartment, in the wheel wells and under the cabin. Yes, I am INSANE!!!!
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1990 Jayco 250 Special
2008 Ram 5500 DRW 6.7, Cummins, Aisin auto
Holland/Binkley 5th wheel, Reese Dual Cam, and more
232,500 kms in 2013
200,000 kms in 2014
160,000 kms in 2015
I bought a bunch of different types. It made a huge difference while driving. Especially putting down a sound deadening carpet mat and rubber-backed carpet (cut-to-fit, wall-to-wall). Also, a good bit of road noise comes from the vent under the fridge where the heat pump is located on my unit. Replaced the grille with two cork squares (removable.)
Have you posted your thoughts on your Redhawk anywhere? We have one too. We've went on a couple of trips now and I was thinking about posting a likes and dislikes just haven't done it yet.