2019 Silverado 1500 LD Rear Window Wind Noise

[RandyR]

My 2019 Silverado 1500 LD (solid rear window) has wind noise that appears to be coming from the right (passenger) side near the top of the window.   I've seen others report a water leak in that area and I'm not experiencing that (yet) just the wind noise.  I thought about running a bead of "Mortite" caulking cord around the top and sides of the window, but don't want to create a worse issue by potentially trapping water along the top ledge of the window.

Anyone have ideas on the fix for this?

Thanks!

[RandyR]

I found the cause of the wind noise:

The entire lower edge of the rear window is not attached to the body.  When underway, there's 1/8 - 1/4" gap between the window and the body.

How to fix this is the next question...