Since getting a full PPF wrap on the car, I've noticed a high-pitched whistle sound in my '11 DB9 Volante, which seems to be coming from the side view mirrors at speeds over 60mph, obviously worse with the top open. Thinking the trim spacing was changed with the PPF, I've tried taping over the A-pillar seam, and the seam around the bottom of the side mirrors, to no improvement. I seem to recall someone narrowing down a source of wind noise or whistle in this area but the searches are not showing up for me. Has anyone else had this and tracked down which feature causes it?

 

Try folding the mirrors at speed to see if it changes.

 

Yes, folding the mirrors in at speed kills the whistle noise. Also changing the airflow by putting my hand in between disrupts the sound. Both aren't desirable solutions, but point to the general source. I'm hoping someone has fixed this with an acceptable long term solution.

Cheers.

 

Only solution is return to stock. Rare that mirrors get stone damaged.

 

They probably popped the mirror caps off to wrap in ppf. When they reinstalled they were not lined up properly. Creates a whistle had the same happen when I put on carbon caps. Look closely at eye level and I bet the gap around the mirror base is slightly off. Remove and re install properly and good to go

 

The didn't take the mirror caps off, as the PPF they put there was die-cut and has the edges exposed. So the caps look proper. I'll try putting tape across other gaps such as underneath to see if I can find the whistle.