We made a run into Logan airport today to pickup my Mom (from Texas)
and on the way back, I was talking to her in the back seat a bit.
Judging from how well I could hear her, I don't think there is much
of an increase in wind noise from the hatch or gutter/side skirts mods.
I normally keep my Nuvi 200 GPS at 70% volume, but today I could still
hear it okay at 50%, so the wind noise is lower or has not increased.
So far, I'm liking the Blue Bonnet and the police have not pulled me over yet!