2014 Cadillac ATS Owner Manual - Page 182

7-12 Infotainment System Backglass Antenna The AM-FM antenna is integrated with the rear window defogger in the rear window. Do not scratch the inside surface or damage the lines in the glass. If the inside surface is damaged, it could interfere with radio reception. For proper radio reception, the antenna connector needs to be properly attached to the post on the glass. If attaching a cell phone antenna to the glass, attach it between the grid lines. { Caution Do not apply aftermarket glass tinting with metallic film. The metallic film in some tinting materials will interfere with or distort the incoming radio reception. Any damage caused to the backglass antenna due to metallic tinting materials will not be covered by the vehicle warranty. Audio Players CD Player The player can be used for CD and MP3 audio. With the vehicle on, insert a disc into the slot, label side up. Press the MEDIA button to select CD as a source. The system is capable of playing: . . Most audio CDs CD-R CD-RW MP3 or unprotected WMA formats Multi-Band Antenna The roof antenna is for OnStar, SiriusXM Satellite Radio (U.S. and Canada only), and GPS (Global Positioning System). Keep clear of obstructions for clear reception. If the vehicle has a sunroof, and it is open, reception can also be affected. . . { Caution Using a razor blade or sharp object to clear the inside rear window can damage the rear window antenna and/or the rear window defogger. Repairs would not be covered by the vehicle warranty. Do not clear the inside rear window with sharp objects. When playing any compatible recordable disc, the sound quality can be reduced due to disc quality, the method of recording, the quality of the music that has been recorded, or the way the disc has been handled.