- TrackRoad.com. TrackRoad.com can import your optimized route directly into Garmin nuvi without the help of any other software. In this example, we will use Garmin nuvi 760 but this should work on any gps device that supports GPX file format. Please note that some older model Garmins may not support importing of GPX files. Please check owner's manual when purchasing the unit. Step 1: Connect the USB Cable Connect the mini-USB connector to the bottom of the nuvi. Connect the larger end of the cable to an available USB port on your computer. Step 2: Build your route in TrackRoad.com Uncheck both "Include Maps" and "Include Directions".
Step 3: Save the route as a gpx file to Garmin Assuming that you have built your route in TrackRoad.com, go to the Get Directions tab. Step 3 (Continued): Saving the route Browse to and open the Garmin or SD card drive/volume. Step 4: Getting nuvi to see your route Start your Garmin, go to Tools, My Data.