My CL has the same rattles. Two in the dash: a minor one behind the stereo and a more prominent one on the far right behind the glovebox. And one in the sunroof. The sunroof rattle was there from day one. The other rattles developed at about 30K miles. And I've heard only a couple of other similar stories with the CL's. I've also noticed that most earlier model Acura's I've seen do have higher quality interior materials. While the materials in the current CL are still of good quality, the difference shows (not to mention that it was assembled here in the States vs. in Japan).

So you are not nuts. The rattle even occur on the fairly decent streets in Houston. And it still is a solid car. I don't think these rattles are indicative of any future problems such as a leaky sunroof.

The only other quality issue I have noticed on the CL is the transmission. I recommend changing the tranny fluid more often than is stated in the service schedule. This will at least help prolong your trannys life by flushing out any shavings coming off the potentially faulty bearing. Hope this helps...