Switch the ignition to ACC or ON.
Press the power/volume dial to turn the audio system on.
Press the media button () of the audio unit to change to the AUX mode.
When the device is not connected to the auxiliary jack, the mode does not switch to the AUX mode.
Adjust the audio volume using the portable audio device or audio unit.
Audio adjustments other than audio volume can only be done using the portable audio device.
If the connection plug is pulled out from the auxiliary jack while in AUX mode, noise may occur.