Digital Sound System Control Module -J525-, REMOVING AND INSTALLING, ADVANCED SOUND SYSTEM (8RF), THROUGH MY 2020: Notes

Special tools and workshop equipment required 

• Fiber-Optic Repair Set - Connector Protective Caps:VAS6223/9  from Fiber-Optic Repair Set:VAS6223B 
  Fig 1: Fiber-Optic Conductor Repair Set VAS 6223A

  Courtesy of AUDI

The Digital Sound System Control Module -J525- is located behind the left rear bench seat on the crossmember.

-- If replacing the control module, select the "Replace control module" function for the corresponding control module on the Vehicle Diagnostic Tester.