Am wondering if anyone else has this problem and/ or has any useful info... I've noticed recently that there's a slight buzzing or rattling noise coming from my dash- right on or near the navigation system screen. The rattling noise seems to be slightly louder when I have the screen open, but it's still audible when closed. It's not that big a deal to me, as I don't expect Mazda quality to match my BMW. But, I am thinking of having Mazda take a look at it anyways when I take my car in for my first oil change in a couple of months. I have 1900 miles on my car so far. Any feedback from actual experience with this issue would be appreciated. Thanks.