Okay. I have my Lowrance unit set on send and receiver NMEA waypoints, and the smartcraft is set on GPS in the speedo mode. I still don’t have speedo. I know when I turn the key, the speedo needle goes to max, like all the gauges, then goes to min. When I take off, all the gauges work, except the speedo, What else should I look at to get my speedo working?