Drivers side rear side marker was loose and rattelling on my 2001 coupe, had pull fender well liner of to get at it, thought Id be able to tighten it, one plastic stud was broken and when I tried to loosen the other stud it snapped, got a new one ordered, just thought it was kind of a cheap set up:mad:

I think you can get to it from the tail light, but yes the 2 tabs that clicks in and holds them drys out and they break off. My buddy's C6 did the same thing!