Digital Sound System Control Module -J525-, REMOVING AND INSTALLING, STANDARD AND BOSE, FROM MY 2015: Removing

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

-- Open the left storage compartment in the luggage compartment.

Vehicles with high-voltage system from MY 2016:

-- Remove the left luggage compartment side trim panel. Refer to LUGGAGE COMPARTMENT SIDE TRIM PANEL, REMOVING AND INSTALLING .

All vehicles:

-- Release and disconnect the connectors -2, 3 and 4- from the Digital Sound System Control Module -J525- -1-.

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-- Insert the :VAS6223/9  -1- onto the MOST bus connector -2-.

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-- Remove the screws -arrows- on the bracket and remove the Digital Sound System Control Module -J525- -1-.

Courtesy of AUDI OF AMERICA, LLC