Sound deadening & rear cab delete/mod

I’ve sound deadened my cab as well as put a second layer of foam on top. Yet, I’m still getting very loud wind sounds.

has anyone removed the side plastic molding (seat belt holder pieces) and deadened behind those?

 

Wind sounds are likely coming through window.

I've seen people put a strip of deadener on the bottom of the window, where you can't see it.

It allegedly helps a bit as it dampens sound transmission.