Complete kit for upgrading and activating the reversing camera input for installing a reversing camera with RCA connection Suitable for the Comand NTG 3 / NTG 3 EVO radio navigation unit Compatible with the following vehicles: S-Class W221 Scope of delivery: Fakra > RCA adapter Coding dongle Note: A suitable NTSC reversing camera is also required The coding dongle can be used multiple times, but only for the same vehicle