Mazda 3 Owner's Manual page 318

WARNING
Do not adjust the portable audio unit
or a similar product while driving the
vehicle:
Adjusting the portable audio unit
or a similar product while driving
the vehicle is dangerous as it could
distract your attention from the vehicle
operation which could lead to a serious
accident. Always adjust the portable
audio unit or a similar product while
the vehicle is stopped.
CAUTION
Always close the auxiliary jack/USB port
lid when it is not in use. If foreign matter
or liquid penetrates the auxiliary jack/
USB port, it may cause a malfunction.
Depending on the portable audio
device, noise may occur when the device
is connected to the vehicle accessory
socket. (If noise occurs, do not use the
accessory socket.)
NOTE
This mode may not be usable depending
on the portable audio device to be
connected.
Before using the auxiliary jack/USB
port, refer to the instruction manual for
the portable audio device.
Use a commercially-available, non-
impedance (3.5 ) stereo mini plug for
connecting the portable audio unit to
the auxiliary jack. Before using the
auxiliary jack, read the manufacturer's
instructions for connecting a portable
audio unit to the auxiliary jack.
To prevent discharging of the battery,
do not use the auxiliary input for long
periods with the engine off or idling.
When connecting a device to the
auxiliary jack or USB port, noise may
occur depending on the connected
device. If the device is connected to the
vehicle's accessory socket, the noise
can be reduced by unplugging it from
the accessory socket.
Interior Features
Audio System
5–61