Yes, several have reported the same issue, I know there is another thread on it here. Some have used a bit of duct tape at the edge and I put some bubble wrap in behind the light and wrapped all of the connectors in there so it is a tighter fit. I no longer notice it but then there is the theory that all you need are louder pipes
There is a TON of free play at the "hook" at the top of the can. I took a piece of 3/4" electrical tape, rolled it into a tube about 1/4" in dia.(adhesive side out so it stays in place) and placed it in bottom of the hook on the bezel. Reassembled everything, hauled ass around the neighborhood and the only buzz I got was from riding a kick ass hunk of rollin' attitude!!