Hello! First post here, as I am a new Ram owner. I know this question has been asked a million times, but I have yet to find a clear answer. Whenever I'm going 40+ mph and have the ac recirculation feature turned on, there is a loud sound coming from the passenger side under the dashboard. It sounds as if I had rolled the window down and outside air is rushing in. The truck is not covered by the factory warranty anymore. If anyone could lead me in the right direction that would be great.