This could be the HVAC system fresh air door, or it could be a small crack in the windshield seal. So, we need to start with this guide which talks about this exact issue:
https://www.2carpros.com/articles/car-whistling-noise
Once we know about this info, we can take next steps but if this is a window, door jam, or windshield, you can tape it off with masking tape until the noise is gone. Plus, you can tape off the cowl to see if the noise gets quieter and then start removing this tape one piece at a time until the noise comes back.
This will tell us where the air is coming in and we can go from there on a possible repair.
Please let us know what you find with this, and we can go from there.
Thanks
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Sunday, March 13th, 2022 AT 1:31 PM