To connect a Dometic PerfectView camera to your multimedia display all you need is a Dometic control box and the RVMB1 truck adapter. The Dometic PerfectView RVMB1 is a custom fit for J2D multimedia systems without J9J video preparation on Mercedes-Benz Actros or Antos trucks. Depending on the selected switch box it is compatible with all Dometic cameras. For installation of the CAM 55 NAV, you won't even need the control box. The adapter will suffice.