How do I set up and activate SiriusXM Satellite Radio on this unit?

Press SRC/OFF to select [SIRIUSXM], then press the channel buttons to navigate to Channel 0 to find your Radio ID. Use this Radio ID to activate your subscription online at www.siriusxm.com/activatenow or by calling 1-866-635-2349 (US). The message [SUBSCRIPTION UPDATED] will appear on the display when the tuner has been subscribed successfully, which typically takes 10 to 15 minutes but may take up to an hour. (Page 20-21)