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 the SEEK or SEEK buttons, or the TUNE knob. ...

Auxiliary Devices (Radio with CD/DVD and MEM)
The optional AUX input allows portable devices to be connected using the 3.5mm (1/8 in) input jack or the USB port. Portable devices are controlled by using the menu system described in Operation ...

Twilight Sentinel
This feature automatically turns the lamps on and off. A light sensor on top of the instrument panel makes the Twilight Sentinel® work, so be sure it is not covered. With Twilight Sentinel th ...