Toyota RAV4 Owners Manual: Using the aux port
To use the aux port, connect a portable player, press the “audio” button, then select “aux” to display the audio control screen.
Connecting a portable audio player
Operating portable audio players connected to the audio system
The volume can be adjusted using the vehicle’s audio controls. All other adjustments must be made on the portable audio player itself.
When using a portable audio player connected to the power outlet
Noise may occur during playback. Use the power source of the portable audio player.
Do not connect a portable audio player or operate the device controls.