Overview - Sound System, Premium Sound System, 9VS, Before Product Improvement

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The Premium Sound System consists of the following components:

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
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
Center Speaker -R208- in the Center Instrument Panel
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

Digital Sound System Control Module -J525- in the luggage compartment or behind the left rear bench seat on the crossmember
Left Front Treble Speaker -R20- /Right Front Treble Speaker -R22- at the top of the A-pillars, at height of the exterior rearview mirror
Left Front Midrange Speaker -R103- /Right Front Midrange Speaker -R104- in the front doors
Left Front Speaker -R2- /Right Front Speaker -R3- in the instrument panel on the left and right sides
Left Rear Treble Speaker -R14- /Right Rear Treble Speaker -R16- Inside the B-Pillars
Left Rear Bass Speaker -R15- /Right Rear Bass Speaker -R17- at Bottom of the Rear Doors
Left Front Bass Speaker -R21- /Right Front Bass Speaker -R23- in the Lower Front Doors
Left Front Treble Speaker 2 -R220- /Right Front Treble Speaker 2 -R221- in the A-pillars at the top
Left Effects Speaker -R209- /Right Effects Speaker -R210- in the rear of the roof
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
Interior Microphone -R74- in Front Roof Module -WX3-
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 .