Antenna Amplifier 4 -R113-, REMOVING AND INSTALLING, SEDAN: Removing

-- Turn off the ignition and all electrical equipment and remove the ignition key.

-- Remove the left D-pillar trim panel. Refer to OVERVIEW - D-PILLAR TRIM PANEL .

-- Remove the rear shelf. Refer to OVERVIEW - REAR SHELF .

-- Release and disconnect the connectors -2- and -3- from the Antenna Amplifier 4 -R113- -1-.

Courtesy of AUDI OF AMERICA, LLC

-- Only loosen the screw -4- (do not remove) and remove the Antenna Amplifier 4 -R113- -1- from the D-pillar.