Glass bottles clinking together???

[Dan DiBiase]

"Duane, Andrew" <andrew at savaje.com> wrote:  My 2000 A6Q has suddenly developed a very strange noise. When I close
one of the front doors, there is a sound that is *EXACTLY* like a couple
of glass bottles clinking together. The sound is coming from the front
of the engine compartment, maybe down near the A/C compressor. It's 100%
reproducible, even by pounding on the front of the car a little.

What in the world would be down there that sounds like glass?

  I'm thinking partying squirrels....
  
  Dan D
  '04 A4 1.8Tq MT-6
  Central NJ USA