See also:

Playing a disc
Press MEDIA several times until Disc is displayed. Release the button and wait several seconds or press OK/MENU. If there is a disc in the player, it will begin playing automatically. Otherwise, ...

External audio source volume
If an external devices such as an MP3 player or an iPod is connected to the AUX socket, the device's volume may be different from the volume of the internal sound sources such as the disc play ...

Auxiliary sound level
If the external sound source's volume is too high, the quality of the sound may be impaired. This can be prevented by adjusting the external sound source's input volume. 1. While playing the ...