We took delivery on a new 2014 Sunstar recently and have a great deal of wind noise (driver side of the MH window) Took it in to CW and they were really perplexed by it but said they would work on it....
I have a 2013 Sunstar & had a similar problem initially & then discovered a very simple fix for me was to unlatch the lock on the window while driving & the noise went away. You don't have to open the window, just unlatch it. I hope yours is that simple.
After a few months of trips the problem has apparently solved itself anyway - now I can leave it latched without the wind noise.