Sirius UC8 Replacement Vehicle Docking Cradle for Sporster, Starmate, Stratus Receivers Sirius UC8 Replacement Car Cradle Works with Sportster 5 Works with Starmate 3, Starmate 4, Starmate 5, Starmate 8 Works with Stratus 3, Stratus 4, Stratus 5, Stratus 6, Stratus 7 This cradle work with 5V Sirius power adapters with the black tip. It will NOT work with PowerConnect Adapters with the red tip (SXDPIP1).