While driving on the highway doing 55-60 or faster it sounds like alot of wind is getting in through the doors, is this common on cobalts? and is there any way to fix the sound? it gets really annoying after a while...

 

mine does it .. it gets annoying so i turn up the music

 

Sometimes, even though i dont have a "door ajar" on the DIC... my door sometimes is not completely shut.