Home >> Audi >> 2017 >> S3 Prestige >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Infotainment >> COMMUNICATION (2 Of 2) -- (A3 SEDAN) >> 91 Communication >> Sound System >> Left & Right REAR BASS SPEAKER -R15- / -R17-, REMOVING AND INSTALLING >> Left/Right Rear Bass Speaker -R15- / -R17-, Removing And Installing, 5-Door Vehicles And Sedan >> Tightening Specifications