Smart KeysLine Select KeysData Radio ID Audio Radio IDFigure 2-1. Data Radio ID and Audio Radio ID LocationsFigure 2-2. MX20 with Full Channel List7. For GDL 69A units, the audio portion is activated independently from the weather. The activationswill not be simultaneous. Once the data channel is activated, bring up the XM Radio page on theMX20. This can be accomplished by pressing the FN key until XM is displayed. Press the XMsmart key. A non-activated unit will display only channel 0 (Radio ID), channel 1 (XM Preview) andchannel 247 (Emergency Alert). An activated unit will display the full list of XM channels. Tune tochannel 1, while waiting for audio activation. Wait for the XM display to become populated with theXM channel list (see Figure 2.2 above for an example of what this looks like).8. Select an XM channel in order to lock in the radio activation.Channels 0, 1, and 247 are free preview channels and should not be used for this procedure. Press theChan smart key and then press either the Up or Down Arrow key to select a new channel. Wait forthe channel to be displayed in the Active Channel box at the top of the XM display. The XM radioactivation is complete when the channel is displayed.XM Activation Procedures Page 3190-00355-04 Rev. H