My van came with windows on the rear doors which I didn't want. I ended up applying some leftover Noico (sound dampener) to the inside of the window, then applying polyiso with great stuff. My van is black so the windows completely disappear into the van exterior. For a non black van I would guess doing the same but adding the vinyl perforated wrap would make them more stealth from the outside if that's the look you want.HC,
I blacked out my rear door windows by making a 1/4" plywood cutout the shape of the window. I covered it with black felt and it just looks like black glass from the outside.
I also did this to black out the back 24" of the rear side windows to provide privacy for the toilet/dressing area.... works great and very inexpensive!
If you are getting a 2014, the window tint is a bit lighter (like I have!), from 2015 on, FCA used a darker grey tint on the glass side and rear windows.