Pioneer Carrozzeria Navigation Accessories This is a set of four digital terrestrial TV film antennas and four antenna cables. These are accessories for the AVIC-RW821-D. These are genuine, brand new, unused items that came with the navigation system. The connector type is VR1 (see photo 3). (Genuine replacement part number: CXF3954) Since the connector type is VR1, it can also be used with navigation systems from other manufacturers (Kenwood, Panasonic, etc.). For detailed compatibility information, enter your navigation model number online and search for "digital terrestrial TV antenna cable" to find out the connector type. No returns or refunds accepted. Shipping method: Nekopos (a Japanese delivery service) There are multiple sets available, so please comment if you need one.