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? ...
My wind noise, which was horrendous, came from the passenger window. The cutout was too large for the window. I caulked both sides and top, helped some. An earplug helped more.