Switching between audio sources such as radio and cd are explained in this section.
Changing audio source
If the audio source selection screen is not displayed, press the “audio” button again.

or
to
Using the steering wheel switches to change audio source
The audio source changes as follows each time the “mode/hold” switch is pressed.
List screen operationCustomization
Your vehicle includes a variety of electronic features that can be
personalized to your preferences. The settings of these features
can be changed by the meter control switches, on the audio system
screen or at your toyota dealer.
Customizing vehicle features (audio system screen)
Audio system ...