I just recently installed the Thule vector alpine box and wanted other owners’ opinions.
This is my first cargo box ever on any car so this might be a “normal thing,” but has anyone noticed a hissing noise inside the cabin after the cargo box install? It’s not major, but there’s definitely a noticeable difference in the sound level before and after the install.
The noise is present starting at 25 mph and slightly worsens as the speed increases.
Any input would be appreciated.

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