Overview - Sound System, Advanced Sound System, 8RF

The advanced sound system (8RF) consists of the following components:

• 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 A-pillars
• Two speakers in the left and right front doors, RX2/RX3
• One speaker in the left and right B-pillars
• Two speakers in the left and right rear doors, RX15/RX16
• Two speakers in the left and right D-pillars, RX17/RX18
• One speaker in the right and left rear of the roof
• Subwoofer -R211- in the luggage compartment floor
• Digital Sound System Control Module -J525- behind the rear seat backrest

Courtesy of AUDI OF AMERICA, LLC

1. Left Front Midrange Speaker 2 -R276- at the Top of the Left A-Pillar
2. Left Front Door Speaker -RX2- in Left Front Door
3. Left Front Midrange Speaker -R103- in Left Front Door
4. Left Front Bass Speaker -R21- in Left Front Door
5. Left Rear Treble Speaker -R14- in Left B-Pillar
6. Left Rear Midrange Speaker 2 -R341- at the Left Rear of the Roof
7. Left Rear Door Speaker -RX15- in the Left Rear Door
8. Left Rear Midrange Speaker -R105- in the Left Rear Door
9. Left Rear Bass Speaker -R15- in Left Rear Door
10. Left Rear Speaker -RX17- in Left D-Pillar
11. Left Effects Speaker -R209- in Left D-Pillar
12. Left Rear Treble Speaker 2 -R217- in Left D-Pillar
13. Left Front Treble Speaker -R20- in the Instrument Panel on the Left Side
14. Left Front Treble Speaker Motor -V344- in Left Front Treble Speaker -R20-
15. Center Speaker -R208- in the Center Instrument Panel
16. Center Speaker 2 -R219- in the Center of the Instrument Panel
17. Right Front Treble Speaker -R22- in Instrument Panel on the Right Side
18. Right Front Treble Speaker Motor -V345- in Right Front Treble Speaker -R22-
19. Right Rear Speaker -RX18- in Right D-Pillar
20. Subwoofer -R211- in the Luggage Compartment Floor
21. Right Rear Treble Speaker 2 -R218- in Right D-Pillar
22. Right Effects Speaker -R210- in Right D-Pillar
23. Right Rear Door Speaker -RX16- in the Right Rear Door
24. Right Rear Midrange Speaker -R106- in Right Rear Door
25. Right Rear Bass Speaker -R17- in Right Rear Door
26. Right Rear Midrange Speaker 2 -R340- at the Right Rear in the Roof
27. Right Rear Treble Speaker -R16- Inside Right B-Pillar
28. Right Front Door Speaker -RX3- in Right Front Door
29. Right Front Midrange Speaker -R104- in Right Front Door
30. Right Front Bass Speaker -R23- in Right Front Door
31. Right Front Midrange Speaker 2 -R277- in Right A-Pillar
32. Interior Microphone -R74-, Microphone Unit in Front Roof Module -R164- in the Front Roof Module -WX3-
33. Digital Sound System Control Module -J525- Behind the Rear Seat Backrest
34. 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 surfaces of the connectors must not get dirty.

If disconnecting the connectors: Attach the Fiber-Optic Repair Set - Connector Protective Caps: VAS6223/9  .

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 the fiber-optic cables.

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