Passenger Window Metal Tap

This morning, I tried to drive with my windows 2-3 inches down in my DCLB.

While I was driving, 40-70 MPH, I would hear my front passenger window being tapped by a metal. To confirm, on a straight road with no traffic, I leaned towards it and wiggled the glass with my fingers in-out and heard and felt the metal tapping.

It sounds like there's something inside the door touching/tapping the glass.
If I get a chance to be a passenger, I'll record it and edit this original post.

Has anyone encountered something similar to this?

 

Yes another guy posted about same type of noise but from driver side maybe a week ago. (can't find thread at moment bc I'm on phone sorry) try searching tapping noise