Hyundai H- CDM8045 Instruction Manual page 18

Mode setting
Press the MOD button on the RC or MODE button on the panel to select TUNER, S-CDP (single disc playback),
USB DRIV modes.
If you select TUNER mode, press BAND once or more to select FM1, FM2, FM3, FM4 (OIRT), AM1, AM2.
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