Digital Sound System Control Module -J525-, REMOVING AND INSTALLING, MMI: Removing

-- Remove the cover from the left luggage compartment side trim panel.

-- Remove the left actuator for the backrest release, refer to BACKREST LOCK ADJUSTMENT ACTUATOR, REMOVING AND INSTALLING .

The nut -1- is accessible above the backrest release opening.

-- Remove the bracket with the Radio -R- and move it to the side, refer to Radio -R-, REMOVING AND INSTALLING, MMI .

-- Loosen the bracket -3- and the nuts -1-, -2- and -4- and move the bracket with the Digital Sound System Control Module -J525- -3- into the luggage compartment.

Fig 1: Locating Bracket -3- & Nuts -1-, -2- & -4- & Move Bracket With Digital Sound System Control Module -3- Into Luggage Compartment

Courtesy of AUDI OF AMERICA, LLC

-- Disconnect the MOST-Bus connector -4- from the Digital Sound System Control Module -J525- -1-.

Fig 2: Disconnecting MOST-BUS Connector -4- On Digital Sound System Control Module -1-

Courtesy of AUDI OF AMERICA, LLC

-- Insert the Fiber-Optic Repair Set - Connector Protective CapsVAS6223/9 -1- onto the MOST Bus connector -2-.

Fig 3: Fiber-Optic Cable Harness Connector And Protective Cap For Cable Connector VAS 6223/9

Courtesy of AUDI OF AMERICA, LLC

-- Disconnect the connectors -2- and -3- on the Digital Sound System Control Module -J525- -1-.

Fig 4: Disconnecting MOST-BUS Connector -4- On Digital Sound System Control Module -1-

Courtesy of AUDI OF AMERICA, LLC

-- Remove the screws -arrows- and take the Digital Sound System Control Module -J525- -1- out of the bracket -5-.