Good info Rudy... I drove the car tonight and just waited to hear the rattle. Drove about 100 miles and nothing... then it started. When it did I placed two fingers on the bottom ledge of the tach bezel and applied a slight downwward pressure. Rattle stopped. Removed fingers... rattle resumed. Applied pressure... rattle stopped.

It is the bezel around the gauges. Now I think I can communicate that to the dealer and it will probably be an easy fix. Thanks Rudy!