The switch button is generally the AUX IN button. Your Freddy should press the CD/AUX button, which is on the right side of the CD screen.
The following are representatives of CD player functions. letter.
MODE→Mode
MO/ST→Mono/Stereo
AMS→Music Monitoring Selection
BAND→Band Sound Effect
POW→Power
EQ→Balance
DISP→File Information
MUTE→Mute
AUX IN→ Signal input