I have the whistling noise. 2019 1500 CC 4x4 Laramie. It sounds like it is coming from the drivers side but I cannot be sure. No sun roof, no tow mirrors. It sounds like a tea kettle whistle when water boils. I know I am going way back.
It starts at 70 MPH when I have a cross wind. It has only done it on East/ West highways. This is definitely a different sound than wind noise. It is very loud and can not be covered up by increasing radio volume. I had to deal with it for 6 hours on a trip back from Phoenix to my home in CA.
I know if I take it back to the dealer they will not be able to reproduce the noise. That is their standard answer for most issues. You have to have a cross wind and be doing at least 70 MPH.
There are a lot of pages on this thread and I have not read all the posts. Sorry if these questions have been answered.
Is this happening in 4x4, 2x4 equipped or both?
Which trim levels?
Standard mirrors, tow mirrors or both?
Thanks John