How To Locate Wind Noise

WARNING: This page is about a different car, the 2012 Mitsubishi Lancer. However, it is still accessible from the selected car via links, so may be relevant.

Attach cloth tape to every place, such as panel seams, projections, molding seams, glass and body seams, etc. which might conceivably be the source of wind noise.
Then make a road test to check that the places not covered by tape are not sources of wind noise.

Fig 1: Attaching Cloth Tape To Every Place
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
Remove the strips of tape one by one, making a road test after each is removed, until a wind noise source is discovered.

Fig 2: Attaching Cloth Tape To Every Place
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
When such a place is found, cover it again and repeat the procedure to check if there are any other noise source.
If no others are found, the last remaining tape is the only source.

Fig 3: Checking Other Noise Source
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
Cut the remaining piece of tape into smaller pieces, attach it again as it was before, and then remove the pieces one by one to narrow down the source.

Fig 4: Cutting Remaining Piece Of Tape Into Smaller Pieces
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
Check that wind noise occurs when the last remaining tape is removed, and that noise does not occur when it is re-attached.
When the source(s) of the wind noise is finally located, attach butyl tape, body sealer or similar material to obstruct this source as much as possible.

Fig 5: Locating Butyl Tape
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.