Warning buzzer for parking -H15-, removing and installing: Removing

The warning buzzer for parking -1- is located below the rear parcel shelf on the separation wall to the luggage compartment.
Remove rear parcel shelf.
See HAT SHELF, REMOVING AND INSTALLING .
Disconnect connector.
Remove both expanding rivets -2-.
Lift warning buzzer off of separation wall to luggage compartment.

Fig 1: Removing Expanding Rivets & Warning Buzzer For Parking

Courtesy of AUDI OF AMERICA, INC.