Securing access to SiriusXM completely free of charge outside of official introductory trial periods is generally limited to promotional vehicle test drives, periodic promotional "free listening" preview events where select channels are unlocked across all compatible radios, or shared family account streaming logins. The company occasionally opens up specific channels nationwide to entice non-subscribers. Attempting to bypass subscription fees through unauthorized activation hacks or illicit software modifications violates terms of service and is heavily restricted by satellite encryption security protocols.