Specific cable kit for upgrading the active audio system of the Audi A4 8W / A5 F5 This cable kit connects the car radio/navigation 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 Additional settings in the sound menu of the infotainment system Selectable option: Version 1: Audi A4 8W Saloon Version 2: Audi A4 8W Avant Audi A5 F5 Sportback Audi A5 F5 Coupé Scope of delivery: Cable kit Notes: For a complete upgrade, additional hardware components are required (speakers, brackets, etc.) For coding, the coding dongle 44782 is also required Currently, the upgrade of vehicles from model year 2024 is not possible