My 2004 3s started to get a crack in the dash board right by the little sensor so I took it to the dealer and they ordered a new dash and had it for a week to put it in and today i picked it up and there is this awful sound that comes into the car as I accelerate like as though were no insulation blocking engine noise and going down the freeway it sounds like a window is open. It sucks! Do Mazda mechanics know what they are doing? Has anyone ever heard of something like this before?