1 Open the Garmin drive or volume. 2 If necessary, open a folder or volume. 3 Select the file. 4 Press the Delete key on your keyboard. Customizing the Device 1 Select Settings. 2 Select a setting category.3 Select the setting to change it. Getting Started Charge your device as you drive before using it on battery power. 1 â Press the suction cup to the windshield. âââ ââ â 2 â While pressing, flip the lever back toward the windshield. 3 Press the mount â up and into the opening on the back of the device until it snaps into place.