I went out sunday and all day the water temp sensor was flashing 32 deg i have a lowrance 520c on the dash with the factory sensor screwed into the the back. i checked on the bow at my x135 and it could not read the temp back there either the temp on the bow was working. so i know its not the units. the gps mod is connected in the back with the temp sensor on the network, it works fine. i checked the connectors and they look ok, and the wire looks ok also . any one else seen, heard or fixed this????thanks