User's Manual Part 5

156
Audio System
Selecting Audio Sources
NAV Source
Please read this manual and the GARMIN ZUMO 660 NAV
MP3 information provided with your player to become
familiar with all unit features and operation.
The audio integration kit must be installed to enable outputs
from the NAV MP3 (such as navigation instructions or user-
loaded MP3 media files) to play through the headsets or
speakers. The unit is fully functional without the kit installed,
but there will be no interface with the vehicle’s audio
system.
Navigation MP3 Operation Tips
• Signals coming from the NAV MP3 unit will override any source
of the motorcycle’s audio system to ensure navigation
instructions are communicated when needed. The signals will
also override the MP3 player.
• You must set volume levels within the NAV MP3 unit. Volume
settings in the motorcycle’s audio system control NAV MP3
volume, but navigation instructions may be difficult to hear if
volume levels in the unit are set too low. See the GARMIN
information for setting procedures. The recommended initial
settings are 100/80/80: MASTER 100%, NAVIGATION 80%,
MEDIA 80%.
• Pause or stop the MP3 player to switch to radio.
• If playing MP3 files from the GARMIN ZUMO 660 unit, you may
need to turn down the “media volume” on the GARMIN unit to
avoid distortion.
• NAV audio must be turned on in the mode menu in order to play
MP3 music files from the GARMIN ZUMO 660 NAV unit.
• While in NAV source, only MP3 music stored on the GARMIN
ZUMO 660 will play on the radio.
The power switch must be ON to use the audio system. Press
and release
until NAV is the active source.
When navigation instructions are
given, the music volume will be
muted and “NAV” will be
displayed on the line below the
active source.