So i just traded up to the 2011 A5 Cabriolet LOVE IT!!!!

My question is should it be this loud in the car when i drive?
Anything above 20 miles an hour and its humming loudly!
I used to have an Infiniti M35 Sport which hummed as well but that was more of purr the A5 is a loud hum, if i have the top closed its almost unbearable.

Anyone experience this, or is this normal for an Audi, mine only has 36k miles.

Thanks!