Auxiliary Jack/Usb Port
“iPod” is a registered trademark of Apple Inc. in the United States and other countries.
The Auxiliary jack/USB port outputs the audio signals of commercially-available portable audio, a USB device, or an iPod connected to the Auxiliary jack/USB port to the audio unit.
Auxiliary jack/USB port is installed inside the rear console.

An auxiliary jack and USB port are equipped.
1. When the plug of a portable audio unit is connected to the Auxiliary jack/USB port, the Auxiliary jack/USB port sends the audio signal from the portable audio device to the audio unit.

USB port
1. When the USB device/iPod is connected to the USB port for the auxiliary jack/USB port, the auxiliary jack/USB port sends the audio signal of the USB device/iPod to the audio unit.

Fail-safe
Function not equipped.
Test yourself
A quick Mazda 3 quiz: every answer comes with an explanation and a link to the manual page.