Antenna Amplifier 2 -R111-, REMOVING AND INSTALLING, SEDAN: Removing
-- Turn off the ignition and all electrical equipment and remove the ignition key.
-- Remove the D-pillar trim panel. Refer to D-PILLAR TRIM PANEL, REMOVING AND INSTALLING .
-- Release and disconnect the connectors -2- and -5- from the Antenna Amplifier 2 -R111- -1-.
Courtesy of AUDI OF AMERICA, LLC-- Remove the screw -3- and remove the Antenna Amplifier 2 -R111- -1- from the D-pillar -4-.