calvin 
2007 Nissan Armada SUV LE 4dr SUV 4WD (5.6L 8cyl 5A)
I have the same wind noise 
 I agree with the guy who has the wind noise coming through the door seal or window seal.  I have taken my Armada to the dealership more than a dozen times and they say the same thing, they have no idea what it is.  It is frustrating.  I hear the wind more when it is cold outside or hitting a pretty good bump in the road.  And he is right about the moon roof.  Mine rattles and the dealership can't fix that either.  Other than those issues I enjoy the truck.    