April 25 (UPI) -- The two largest radio companies in the United States, iHeartMedia and Sirius XM, are in early talks to merge their powers in the traditional and satellite radio businesses. The combined company -- SiriusXM would be acquiring iHeartMedia -- would be a broadcasting behemoth of 860 terrestrial radio stations in 160 markets and roughly 33 million satellite subscribers, The Hollywood Reporter , Bloomberg News and The New York Times reported. Both companies have also had up and down