MPH is reading 0 constantly on the gauge. MPH is working on GPS but seems to be to slow for actual speed. Running a 16” Lowrance Live with no Point-1. Does having it going through the graph make the gauge not work? 2019 Skeeter FX. Had a 2012 FX previously and did not have this issue. Both read MPH. Other readings on gauge are fine just no MPH. Thanks!