Installed a windshield extension from these guys
http://www.wunderlichamerica.com/motorcycle/K1100RS/8110025.html
on my Aeroflow windshield to try and eliminate some of the wind noise around my helmet. lowered noise by about 75% but I am going to take it out today and adjust it some more. It is a solid product.
I recently installed a Sena in my helmet and it was tough to hear through the speakers. I got the Sena ear-bud kit and that helped a great deal.
Hoping to eliminate as much noise around my helmet. I got enough noise in my head let alone whats coming from outside