trony, this one still remains a mystery to me and, unfortunately, I don't have the quick fix. Others have had some success with their audible sounds but I am ready to leave this one at "parade rest" suspecting a broken play from design of the vehicle itself with those of us who have roof racks. Wish FICA could do a sound study in their engineering wind tunnels with varying speeds and directions. We all live in different dots on the world map and those dots have different road conditions and daily/seasonal wind flows. One last thing, if one does not have high cross winds in their area, the slight wind whistle will never be heard. Please keep in mind that the radio and any ventilation fan must be completely off to better hear the sounds. Thanks.