See also:

XM Categories
XM channels are organized in categories. Removing or Adding Categories Channels in a category that have been removed can still be accessed by using thes© or ¨\buttons, or the TUNE/MENU knob. ...

Horn
Press on the steering wheel pad to sound the horn. ...

Remote Control Buttons
(Power): Press this button to turn the DVD player on and off. (Title): Press this button to return the DVD to the main menu of the DVD. (Menu Navigation Arrows): Use the arrow buttons ...