this invention describes a system that plays back content based on in - vehicle function triggers . the invention may be used for a variety of applications . in one example , the control unit ties to the remote keyless entry system and uses the vehicle signal to the function as playback trigger for the content . in - vehicle subsystems such as warning and information signals or other systems with manual triggers like the rke system may also be tied to the vehicle unit to trigger content playback . content delivery scenarios provide secure and robust transmission from an original source to the vehicle unit . the vehicle unit stores the content in an on - board storage . content loading and operation of the system is configured using a computer or handheld device .