Overview - Sound System, Advanced Sound System (8RF), From My 2021

WARNING: This page is about a different car, the 2022 Audi SQ7, 2022 Audi S7, and 2022 Audi Q7. However, it is still accessible from the selected car via links, so may be relevant.

The Advanced 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, RX2/RX3
One retractable 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
Two speakers in the left and right rear doors, RX15/RX16
Two speakers on the left and right sides of the rear roof, RX17/RX18
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
Information Electronics Control Module 1 -J794- behind the glove compartment

Courtesy of AUDI OF AMERICA, LLC

Information Electronics Control Module 1 -J794- behind the Glove Compartment
Interior Microphone -R74- in Front Roof Module -WX3-
Left Front Midrange Speaker 2 -R276- 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
Left Rear Speaker -RX17- in the Left Rear of the Roof
Left Rear Treble Speaker 2 -R217- in the Left Rear of the Roof
Left Effects Speaker -R209- at the Left Rear in the Roof
Left Rear Treble Speaker -R14- in Left B-Pillar
Right Rear Treble Speaker -R16- inside right B-Pillar
Right Effects Speaker -R210- in the Right Rear of the Roof
Right Rear Treble Speaker 2 -R218- at the Right Rear in the Roof
Right Rear Speaker -RX18- in Roof on Right Rear Side
Right Front Treble Speaker 2 -R221- at the Top of the Right A-Pillar
Right Front Midrange Speaker 2 -R277- in the Right A-Pillar at the Top (at Height Level of Exterior Rearview Mirror)
Left Front Treble Speaker -R20- in the Instrument Panel on the Left Side
Left Front Treble Speaker Motor -V344- in Left Front Treble Speaker -R20-
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 Door Speaker -RX15- in the Left Rear Door
Left Rear Midrange Speaker -R105- in the Left Rear Door
Left Rear Bass Speaker -R15- in Left Rear Door
Center Speaker 2 -R219- in the Center of the Instrument Panel
Subwoofer -R211- in the Luggage Compartment
Center Speaker -R208- in the Center Instrument Panel
Right Rear Bass Speaker -R17- in Right Rear Door
Right Rear Midrange Speaker -R106- in Right Rear Door
Right Rear Door Speaker -RX16- in the Right Rear Door
Right Front Bass Speaker -R23- in Right Front Door
Right Front Midrange Speaker -R104- in Right Front Door
Right Front Door Speaker -RX3- in Right Front Door
Right Front Treble Speaker Motor -V345- in Right Front Treble Speaker -R22-
Right Front Treble Speaker -R22- in Instrument Panel on the Right Side
Digital Sound System Control Module -J525- in the Luggage Compartment or behind the Rear Bench Seat to the Left on the Crossmember
Data Bus Wires for Audio Bus
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 :VAS6223/9 from the Fiber-Optic Repair Set :VAS6223A .

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 .