Emma Pike

We drive a 2022 Silverado 1500 RST and since I purchased it new the driver side window makes a whistling/wind noise when going at speeds over 64 miles per hour. It sounds like it is coming from the top left corner of the window. Dealership installed rain guards but the whistling is still there and gets louder as speed increases. They have no other answers but can also hear the noise. Anyone else experiencing this or know of a fix?