Ever since I bought my Mazda used I've noticed that when I start getting up to around 60+ MPH I can hear a 'rattling' noise. Further, looking out my windshield it appears my hood is tremmoring quite a bit more than could be considered normal. Of course I've tried re-closing the hood, ensuring it's fully closed, but that doesn't do much. I looked at it some more and the only thing I can come up with is noticing the two holes that don't have anything in them, making me wonder what their purpose is, perhaps an additional clamp or something that somehow went missing? Here are some pictures of the hood, would someone mind confirming whether everything looks right or if I'm missing pieces?