TEST: Turn on the vehicle's radio. If sound from an FM radio station can be heard, the GTM 10 and its
cables are properly connected. If no sound is heard, the GTM 10 is not connected correctly. Check that all
cables are locked into place and free of obstructions. If the connections are secure, make sure the chosen
adapter cables are correct for the vehicle.
Step 3: Connect to the GPS Device
Route the mini-B USB cable from behind the radio on the passenger's side of the vehicle up to the GPS
device. If possible, thread the cable through an existing opening in the glove box or trim panel. Thread
enough cable through the opening to reach the GPS device. Do not cut the mini-B USB cable.
If the mini-B USB cable is not long enough to reach the GPS device, use the 2-meter extension cables
provided. Wrap the two connectors with electrical tape. Additional extensions are available for purchase
from a Garmin dealer or from the Garmin Web site at http://www.garmin.com/products/gtm10.
Step 4: Test the GTM 10
Test the GTM 10 for a proper installation and service reception. Connect the mini-B USB connector to
the GPS device.
• Observe the LED: Turn on the GPS device. Service reception is indicated by the solid green light,
which may take up to five minutes to appear for initial data acquisition.
Yellow dot-dash flashes: waiting for initial country code, automatically supplied by the
GPS device.
Yellow fast flashes: searching table for active entry
Red/Green flashes: scanning for new TMC FM stations
Red solid light: momentary sync loss
Green solid light: normal TMC traffic data flow. The GTM 10 must be in an area of
service and be receiving adequate signals to display a solid green light.
• Verify Signal Strength: If you are inside a building where radio signals cannot be received, you may
need to take the vehicle outside for testing.
• Verify that you are in a service area: Check for service from the pay service or free services, if
available. To view service areas, go to the Garmin Web site at http://www.garmin.com/fmtraffic.
• Check the Map: Turn on the GPS device and access a map. Check for traffic alerts and symbols on
the map. It may be easiest to browse the map of a roadway or intersection under construction or that is
known to have frequent traffic hazards. If possible, refer to the Owner's Manual.
If the above tests fail, either you are not in a service area, the purchased subscription is not activated (see
below), or the installation might be faulty.
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