Now is the time to tune in if you want free access to over 100 SiriusXM Canada channels. The audio entertainment company is offering a limited-time "Listen Free" opportunity without any credit card required. You can listen to over 100 channels of ad-free music, exclusive talk, news, podcasts, and more until December 6, 2021. It's free for anyone with an inactive satellite radio in their car or online and on the phone via the SXM App without registration required.