Customizing a CDL3 track kit and am at a bit of a loss as to how to get the unit to read GPS for road speed. Step by step help would be sincerely appreciated.
A few ways to do it depending on what you are trying to accomplish.
If you just want to display speed on the dash, click the "Setup Display" icon. Double click on the field you want it displayed in and set to "GPS Speed". Check the units and tick the box by "Speed" in the Enunciator section.