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Switches between MP3 and tuner operating modes.
Converts between MP3 and tuner modes.
Mutes/unmutes audio; flashes when muted.
Controls MP3 playback or cycles through memorized tuner channels.
Selects previous MP3 track or tuning channel.
Selects next MP3 track or tuning channel.
Selects MP3 EQ modes or calls tuner channels.
Decreases MP3/TUNER volume.
Increases MP3/TUNER volume.
Inputs MP3 track number or tuner channel memory number.
Searches memorized tuner channels automatically.
Selects MP3 repeat modes (repeat one/all).
Instructions for playing MP3s from USB/SD, including repeat and EQ settings.
Instructions for searching and playing radio channels, including auto-search.