Hi there,
Had a few wind noises on ours, others suggested weep holes in side windows which you could get some covers for (but I never found any holes on our A.C.E.). Some recommended putting the furry side of Velcro on the inside vertical edge of the sliding side windows to force a tighter seal. I did put a stone guard mess on the chrome grill, which I guess would also break up the air flow (our 2015 has the old style grill which was said to produce noises).
But in the end, my noises came from the hole where the cables for the side mirrors goes through the wall. It made a sound like blowing across a beer bottle opening. You can see the drivers side hole if you remove the cover above the gauges. I used spray foam to seal those holes, that problem was cured. There are still plenty of noises left to deal with.... creaky TV above the door, door surround, table legs, plastic shelf where the jacks panel is etc etc going to take time but hang in there... labor of love and all that.
Rgds
Tex
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