9VS - Premium Sound System, Bang & Olufsen

Two speakers in the left and right A-pillars
Two speakers in the left and right front doors
One speaker on the left and right side of the instrument panel
Two speakers in the center of the instrument panel
Two speakers in the left and right rear doors
Two speakers in the rear shelf/left and right D-pillar
Subwoofer -R211-
Digital Sound System Control Module -J525- in luggage compartment on left rear side

Fig 1: 9VS - Bang & Olufsen Circuit Diagram

Courtesy of AUDI OF AMERICA, LLC

Left Front Treble Speaker 2 -R220- in the left A-pillar at the top
Left Front Midrange Speaker 2 -R276- in the Instrument Panel on the Left Side
Left Front Bass Speaker -R21- in the bottom of the left front door
Left Front Midrange Speaker -R103- in center of left front door
Left Front Treble Speaker -R20- in the left upper a-pillar
Left Rear Treble Speaker -R14- in Left Rear Door at Top
Left Rear Bass Speaker -R15- in the bottom of the left rear door
Left Effects Speaker -R209- in the Rear Shelf/Left D-Pillar
Center Speaker -R208- in the Center Instrument Panel
Center Speaker 2 -R219- in the Center of the Instrument Panel
Subwoofer -R11- in the Rear Shelf/Luggage Compartment Recess
Right Effects Speaker -R210- in the Rear Shelf/D-Pillar on the right side
Right Rear Bass Speaker -R17- in the bottom of the right rear door
Right Rear Treble Speaker -R16- in the right rear door at the top
Right Front Treble Speaker -R22- in the Right Upper A-Pillar
Right Front Midrange Speaker -R104- in center of right front door
Right Front Bass Speaker -R23- in the bottom of the right front door
Right Front Midrange Speaker 2 -R277- in the instrument panel on the right side
Right Front Treble Speaker 2 -R221- at the top of the right A-pillar
Interior Microphone -R74-, Microphone Unit in Front Roof Module -R164- in the Front Interior Lamp -W1-
Digital Sound System Control Module -J525- in luggage compartment on left rear side
MOST Bus

Notes on MOST Bus

The optical data bus "MOST bus" is used in addition to the CAN bus.

A fiber-optic cable is used. Fiber optic cables are routed inside corrugated tubes for protection.

Replace the complete fiber-optic cable if possible.

The front surface of the connectors must not be contaminated.

If disconnecting the connectors: Attach the Fiber-Optic Repair Set - Connector Protective Caps: VAS 6223/9 .

Fig 2: Fiber-Optic Conductor Repair Set VAS 6223A

Courtesy of AUDI OF AMERICA, LLC

When routing fiber-optic cables, make sure not to go below the minimum bending radius of 25 mm. Do not crush or kink the fiber-optic cables.

Repairing fiber optic cables. Refer to FIBER-OPTIC CABLES, REPAIRING .