I have the Holley EFI 7” Digital Dash with the Holley Sniper EFI AUTOLITE 1100 (550-552). I've installed the Sniper EFI software and have gotten everything to work except the GPS. I have the Holley 554-140 GPS sensor installed. I have tried to change the Odometer to GPS Speed, but it always defaults back to Dash Speed when I leave that screen. Both the Odometer and the Speedometer do not work. The screen always reads “No GPS” and “Acq Sat”, no matter where I put the sensor even through the window to the roof. I have tried unplugging it and plugging it back in to the both USB ports, but it still doesn’t work. Any suggestions as to how to fix this?