Here’s a shot of a rubber seal from the door seal kit along inside the inside groove of the driver’s side door seal.
I got this idea from the day someone shoved a business card through the Bpillar gap in my driver’s door... if a card can slide through surely air can enter as well. Granted, air wouldn’t be moving in the right direction to cause a lot of turbulence but had an extra rubber seal lying around, why not
The top of the window seems fine because the end of the window makes contact with the seal, then there’s the seal, but on the side there’s only the door seal gap ... that’s gaping open in the case of the business card. I put the rubber so it was no longer possible to shove a card through the gap.
Repeated process for all other three windows. Improvement in noise for sure at the expense of some window squeaking in the rain... decent trade off but your mileage may vary.