cabin noise

Anyone have suggestions for decreasing the cabin noise in my 96 ex sedan? Not usually a problem, but at highway speeds it gets a little loud compared to many luxury cars. the car is still mostly stock. the tires were replaced a year ago with Michellins similar to the original factory tires.

hmm.. there isn't really much u can do. Only think i can suggest is find areas u have vibration at those speads and place dyno mat on top of it. This will require you to left the carpet, so i dont' know if you want to go throught that trouble.

Does dynamat really make much difference? I've always seen it advertised in catalogs like crutchfields and wondered, since it is not cheap. I'm sure the company would tell me to coat the entire inside of the car with it, but where is it most effective? floor, doors, fire wall, etc.? and as far as finding vibrating pannels, is there any other way than having someone drive my car around the highway while i feel around for vibrating pannels?

Thanks