how to add music to the player of CU920

Anyone know how I can add music to the library of the CU920 esque player gets boring having to change the song one by one and not being able to use an equalizer and the library whenever you want to use says that there are no songs, we also wanted to see if someone who knows how I can use the tv and radio am from Guatemala and did not work or my tv or radio is CU920 at & t if anyone can help I would appreciate.

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