I have a new 2017 Winnebago Journey. I love it except for one thing - wind noise. I can't pin point exactly where it is coming from, but it seems like the front left, maybe the angle of the mirrors? ...
I had that happen in my gas motorhome. Found out a weep hole cover in my left side front window had been knocked off when I washed it. Covered it with duct tape until I replaced the cover. I couldn't believe how much wind noise that little hole made.