Kia 2011 RIO Owner's Manual page 103

Knowing your vehicle
RADIO, SET UP, VOLUME, AUDIO CONTROL(PA910L, SIRIUS SATELLITE RADIO MODEL) (IF EQUIPPED)
3 90
1. FM/AM Selection Button
2. Automatic Channel Selection Button
3. Power ON/OFF Button & Volume Control
Knob
4. Preset Button
5. Manual Channel Selection & Sound
Quality Control Knob
6. SETUP Button
7. SCAN Button