Panasonic CQ-R255SEUC Manuel D'utilisation page 10

Power and Sound Controls
continued
AUX Jack
Selecting Auxiliary Source
© Press and hold MODE for more than 2 seconds to select AUX Input
mode.
© Connect the auxiliary equipment AUX Jack.
Canceling AUX Input mode_
Press MODE while the AUX mode is operated, the mode will return to
the previous mode. Or insert a cassette tape, and the mode will
change to TAPE mode.
CQ-R255SEUC