Wow, this thread needs some serious bumping! I had some rattle coming from the front and was searching for a solution here. Thank God I found this thread before I started to tear my dash apart
Both sides were very loose and most of my rattle coming from front of the car is now gone!
However I'm still getting a very annoying rattle from the left back corner of my car. Unlike some other guy did here I put my mrs behind the wheel and threw myself in the trunk. The sound was definately coming from the rear light.
Need to take it off and see what's up. This might give me a good excuse to change to some LED rear lights. I'll try to tell the mrs that it's unfixable and if she doesnt buy that I'll just tell her I accidentally broke it
BIG thanks to Joe for this!!