Yesterday I noticed when i set my cruise control on 100km/hr while driving on the highway just going for a cruise... Why do I hear what sounds like air coming into my car through the vents by the windshield. That sound also makes it sound like my AC/fan is on, which it isn't and honestly it feels like I'm going 95km/hr. Make sense? 08' charger 2.7l v6 se rwd.