Nissan Qashqai e-POWER 2023 Owners Manual
7.8.1.1. 
Power ON/OFF button
Press the 
button to switch on the audio unit. If the audio unit was switched off using the e-POWER system power switch, it can also be switched on with the e-POWER system power switch. The source that was playing immediately before the unit was switched off will resume playing and the volume will be set to the previous volume level.
The audio unit can be switched off by pressing , or by switching the e-POWER system power switch OFF.
Owners Manual