See also:

Notes On Playing MP3 Files
The radio can play MP3 files; however, acceptable MP3 file recording media and formats are limited. When writing MP3 files, pay attention to the following restrictions. ...

Media Center 230 (REQ) — AM/FM Stereo Radio And 6–Disc CD/DVD Changer (MP3/WMA AUX Jack)
NOTE: The radio sales code is located on the lower right side of the radio faceplate. Media Center 230 (REQ) ...

Control Buttons
The Compass/Temperature control buttons are located on the left spoke of the steering wheel. Mini-Trip Control Buttons Press and release the STEP button on the steering wheel to access the optio ...