8RY - Premium sound system, BOSE, from MY 2015

• Two speakers in the left and right front doors
• One loud speaker on the left side, center and right side of the instrument panel
• Two speakers in the left and right rear doors
• One speaker in the left and right D-pillars
• Subwoofer - R211- in the luggage compartment recess
• Digital Sound System Control Module - J525-

There is a sound system with ANC EP1 and without ANC EP0.

Fig 1: Identifying Sound System With ANC EP1 And Without ANC EP0

Courtesy of AUDI OF AMERICA, LLC

1. Digital Sound System Control Module - J525- behind the left luggage compartment trim panel
2. Left Front Treble Speaker - R20- / Right Front Treble Speaker - R22- in the instrument panel
3. Left Front Midrange Speaker - R103- / Right Front Midrange Speaker - R104- in front doors, center
4. Left Front Bass Speaker - R21- / Right Front Bass Speaker - R23- at bottom in front doors
5. Left Rear Treble Speaker - R14- / Right Rear Treble Speaker - R16- at top in rear doors
6. Left Rear Bass Speaker - R15- / Right Rear Bass Speaker - R17- at bottom in the rear doors
7. Center Speaker - R208- in center of instrument panel
8. Left Effects Speaker - R209- / Right Effects Speaker - R210- in the left and right D-pillars
9. Subwoofer - R211- in the luggage compartment recess
10. Microphone Unit In Front Roof Module - R164- (Interior Microphone - R74-) in the Front Interior Lamp - W1-

    - ANC microphones inside the headliner

11. MOST bus