does it only happen when you accelerate, if so up to what speed and what geer/geers? Does it go away when you let off the accelerator? Does it only happen when your moving? Does it happen when you have the top up and down? Does it happen when you slowly accelerate?
I am just trying to gather more info to eliminate things like seatbelt being caught in the wind, something loose, like trim piece on the car....
I would first take the small screw out of the top of the air vent behind you/front of the rear wheel, take a flashlight and look in there for anything loose or flapping. Might want to check the other side too. it is real easy to take them off. I doubt thats it but you never know. This maybe one of those process of elimination things.
