See also:

Radio
When the same radio source is selected in the front and rear (e.g., FM/AM), the same radio station is played. Operation is the same as for the front radio. ...

Selecting a category
1.  "Radio" 2.  "Satellite radio" 3.  "Category" 4.  Select the desired category. ...

Collision warning
The concep The system issues a two-phase warning of a danger of collision at speeds above approx. 10 mph/15 km/h. The time of these warnings may vary depending on the current driving situation. ...