Would be easy if the nexsyslink had a nema 2000 connector. The power cable with the HDS unit has the nema 0183 with it. It has 5 wires(yellow, blue, orange, green & black) to the cable. I need to know which wire will need to be connected to the speedometer. Or, is there another way to connect the HDS unit to the nexsyslink speedometer. Bass Cat can you help me on this?