Im replacing my gps puck with a newer one with the heading sensor. My original puck pigtail black wire is connected to the ground, white wire is not connected to anything, and the green wire I believe is connected to the nexsyslink gauge through an orange wire. What can the nexsyslink gauge display by having the gps pigtail connected? Ive scrolled through the gauge displays, and I dont see anything it displays that looks like it would need data from the gps puck.