SiriusXM Radio reported net subscriber additions were 445,921 in the third quarter of 2012. SiriusXM ended Q3 on September 30 with a record 23,365,383 subscribers. Additionally, the company announced that it is raising its net subscriber additions guidance to 1.8 million for 2012 from its previous guidance of 1.6 million.

"These strong net additions produced our best third quarter since the merger and exceeded third quarter 2011 subscriber growth by 34 percent," noted CEO Mel Karmazin. "With almost 1.5 million net subscribers already added in 2012 and continuing growth in auto sales, we will significantly exceed our previous guidance of 1.6 million, marking our third increase in subscriber guidance this year and putting us on track for record post-merger net additions."