I've got em too. Haven't been able to completely stop them either. Rattles are one of the hardest things to find too. One rattle I did have that I was able to fix was a pop fastener that I unknowingly shattered while putting one of the panels back on the car. I finally figured out what it was and about a buck later that one stopped. Problem is the suspension on an Insight is so stiff rattles seem to start pretty easily.