Main Volume Control
Press the VOL switch.
(Right-hand side)
Increases volume
(Left-hand side):
Decreases volume
Press for at least one second will continue to increase the volume.
Press for at least one second will continue to decrease the volume.
Volume switch
Adjust the volume level that does not affect on your safety driving.
You can control the volume level from 0 to 80.
The actual sound level may vary when you have switched the audio source. Adjust the sound level appropriately according to the audio source you select.