Specific complete kit for upgrading the active audio system in the Audi A6 4A, A7 4K This cable set connects the radio/navigation unit to the subwoofer, the center speaker Extension of the existing speaker system (PR no.: 8RM) Better sound thanks to an additional subwoofer and center speaker Selectable option: PR no.: 0K0 PR no.: 0K4 Scope of delivery: Cable set 1 x subwoofer for the spare wheel arch 1 x center speaker Screws Coding dongle Notes: Currently, the retrofitting of vehicles from model year 2024 is not possible