NISSAN 2014 Quest - Owner's Manual - Manual (Page 288)

SAA3609
Volume control:
Turn the volume control knob to adjust the
volume.
The headphones will automatically be turned off
within approximately 5 minutes if there is no
infrared signal input during that period. To
prevent the battery from being discharged, keep
the power turned off when not in use.
If the sound from the headphones is not clear it
may be because:
. of an infrared communication device or
cellular phone, turn down the headphone
volume or stop using the headphones, or
. the headphones maybe out of the range of
the transmitter installed in the rear flip-down
display screen. This is not a malfunction, or
. the sound may be interrupted temporarily
when there is an obstacle between the
headphones and the transmitter. Remove
the obstacle, such as opaque materials,
hands, hair, etc.
SAA3610
Models with navigation system
Monitor, heater, air conditioner, audio, phone and voice recognition systems 4-105