Overview - Sound System, Premium Sound System (9VS), From Product Improvement Through My 2020

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The Premium Sound System consists of the following components:

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 A-pillars
Two speakers in the left and right front doors, RX2/RX3
One speaker in the left and right B-pillars
One loud speaker in the left and right rear doors
One speaker in the right and left rear of the roof
Subwoofer -R211- in the luggage compartment
Digital Sound System Control Module -J525- in the luggage compartment or behind the left rear bench seat on the crossmember

Courtesy of AUDI OF AMERICA, LLC

Left Front Speaker -R2- in the left instrument panel
Left Front Door Speaker -RX2- in Left Front Door
Left Front Midrange Speaker -R103- in left front door
Left Front Bass Speaker -R21- in Left Front Door
Left Rear Treble Speaker -R14- in the left B-pillar
Left Rear Bass Speaker -R15- in Left Rear Door
Left Effects Speaker -R209- at the left rear in the roof
Left Front Treble Speaker -R20- at the top of the left A-pillar, at height of the exterior rearview mirror
Left Front Treble Speaker 2 -R220- in the left A-pillar at the top
Center Speaker -R208- in the Center Instrument Panel
Center Speaker 2 -R219- in the Center of the Instrument Panel
Subwoofer -R211- in the luggage compartment
Right Front Treble Speaker 2 -R221- at the top of the right A-pillar
Right Front Treble Speaker -R22- at the top of the right A-pillar, at height of the exterior rearview mirror
Right Effects Speaker -R210- in the right rear of the roof
Right Rear Bass Speaker -R17- in Right Rear Door
Right Rear Treble Speaker -R16- in the right B-pillar
Right Front Door Speaker -RX3- in Right Front Door
Right Front Bass Speaker -R23- in Right Front Door
Right Front Midrange Speaker -R104- in Right Front Door
Right Front Speaker -R3- in the Right of the Instrument Panel
Interior Microphone -R74- in Front Roof Module -WX3-
Digital Sound System Control Module -J525- in the luggage compartment or behind the left rear bench seat on the crossmember
MOST Bus

Fault Finding is performed using the "Guided Fault Finding" on the Vehicle Diagnostic Tester .

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 the connectors are disconnected: connect the Fiber-Optic Repair Set - Connector Protective Caps:VAS 6223/9 from the Fiber-Optic Repair Set:VAS 6223A .

Fig 1: 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 fiber optic cables.

Fiber-optic cable repair. Refer to FIBER-OPTIC CABLES, REPAIRING .