My Car is Making a “Clanky” noise

Friend o' mine worked at the Caddy dealer in the old homeland. He took all the underdash stuff cuz the flat rate hours were very profitable for him. Caddy comes in with the clanky noise. 3 different service people testing and listening to locate it, finally they hand it off to Jimmy the interior guy out of desperation. A few hours later Jimmy presents the issue to the service manager. Seems a comic working at the factory had taken a coke bottle of the glass variety and a string and hung it inside the passenger side door. Inside the bottle was a note "HaHa! How long did it take you to find this? HaHa!". Of course the service manager gave the customer some song and dance routine about calling the factory with the VIN number and having the comic disciplined. :rolleyes: Riiiiight. :lol: