Since I had a little left over of the sound insulation material from when I used it on the doghouse I figured I'd use some to try to plug the A pillar holes:
I cut two sections about 8" x 2' and crammed them up the sides from the engine compartment. The right end of the picture above is where the A pillar hole is. Unfortunately when I was putting the RV away I was concentrating on something else (see below) and didn't pay attention to the noise level.
Jamie, is that FatMat insulation that you are using?
Also, I was poking around under the hood today and took a pic of the air ducts that supply air at the base of the windshield. This looks like it could be a source of eng. noise since it does not look as if it is insulated. Below is a pic. I haven't figured out how to insulate it yet. Any ideas? Maybe FatMat would work here.
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