Abstract: A system and method for enabling authorized satellite radio access allows users with multiple vehicles to move their radio subscription from one authorized vehicle to another without having to hold two separate subscriptions. In an embodiment of the invention, an XM receiver includes a portable media input, and the XM receiver is programmed to read for the presence of a USB device, SD card, or other peripheral media device containing an authorization code linked to the electronic serial numbers (ESNs) of the XM receivers in the user's vehicles. In addition to having an authorized and subscribed ESN, the XM receiver in each vehicle requires the presence of the portable media device for the receiver to play XM content. The portable media device can also be used to transfer the subscription to a home stereo system, computer, or aftermarket device to allow.

Abstract: A method of providing user-defined satellite radio filtering in a satellite radio system entails receiving at the satellite radio system a user-defined filter specifying one or more satellite channels to block and, when receiving satellite radio signals, making the one or more satellite channels to block unavailable for listening by the user. The user-defined filter may be received via direct user input, a portable storage device, or a wireless network.