This is an authentic Mercedes-Benz Front Radio Screen Navigation Head unit that is compatible with W163 type class ML55. It includes a faceplate with SVC Voice, telephone, and map navigation features, as well as a center Benz MBZ AMG Nav Navi and an original LCD Navigation Player display. This unit also comes with a Cassette Head CD Changer Receiver and an MCS NV4BN110 Q1 Dolby System Audio for a high-quality sound experience. The item is in its original state and is sold without warranty. It is the perfect replacement for a broken or outdated unit and adds value to your Mercedes-Benz. Don't miss out on this genuine 02 03 04 2002 2003 2004 2005 OEM product.