If I'm on the highway it's very quiet, no rattling or anything, except for some wind noise like a window is open or something. I always check just to make sure but it's never the window. All the doors are closed as well so I just can't understand why it is so noisy. Maybe I need to get one of those little spoilers that go at the top of the rear window to stop it. I dunno, but I'll buy just about anything to get it to stop because it's very annoying when I'm driving and trying to talk to someone on the highway.

 

this is a well-known problem.

http://www.innerbean.com/housecor/wi...ind_noise.html

how to fix it....

 

awesome, I gotta do that this week as soon as I change the oil and wash it

 

I did that fix a few weeks ago on my 2K2 and it worked great. Just make sure you get the light density foam. It cost like $3.00 at Home Depot.
Sometimes the weatherstrip doesn't fit correctly after you take it off. You may have to squeeze the metal inside the weatherstrip back into shape with your fingers. It's pretty easy.
The car sure is quiet now. I also did it to my wifes 2K with great results. The best $3.00 spent on the car so far.

 

try stickin toilet paper in between the door seams