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Scanning XM Radio Channels
From the XM Audio Page, you can scan all channels, scan channels
in a specic category, or scan channels in your Favorites.
To scan XM Radio channels:
1. On the XM Audio Page, press MENU.
2. Select Scan on the options menu, and press ENTER.
3. Select All Channels to scan all channels.
OR
Select Category to scan only channels in the selected
category.
OR
Select Favorites to scan only channels in your Favorites list.
4. Press ENTER. Each channel is played for ve seconds and
then advances to the next channel.
5. Press any key to stop scanning and select the current
channel.
Turning Audio On or Off
To turn audio on or off:
1. On the Audio sub tab, press MENU.
2. Highlight Mute Audio Output on the options menu to turn
the audio off. A music note with a red slash appears in the
song pane. Highlight Enable Audio Output to resume audio
output.
Audio output is muted
GPSMAP 378/478 Owner’s Manual 55
MArIne Mode PAges > XM AudIo PAge