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SEARCHING FOR SATELLITES: What's new at Sirius XM? Here's a bit of dish: Tame Impala joins Sirius XMU with "Feels Like We Only Go Backwards" (Modular) alongside "Get Lost" by Babies (Woodsist). 20 on 20 adds 50 Cent f/Eminem and Adam Levine, "My Life" (Shady/Aftermath/Interscope), Owl City's "Shooting Star" (Republic), "Try" by P!nk (RCA), September's "Hands Up" (Robbins) and "Endlessly" by The Cab (Z-Entertainment). Over at The Pulse, new tracks are Bruno Mars' "Locked Out of Heaven" (Atlantic), Taylor Swift's "I Knew You Were Trouble" (Big Machine) and "Mermaid" by Columbia's Train. Alt Nation added "Up All Night" by Alex Clare (Republic) and two indie tracks, American Authors' "Believer" and "Dust and Bone" by a band with the amazing moniker Night Terrors of 1927. Speaking of night terrors, they're not covered by health insurance. Trust us--we know. (12/5p)