Hey I have a Merc 350 MPI, I am running 4 batterys on a 2 pole switch. I was out in the boat last ngiht (going maybe 2 miles an hour)and all of a sudden I lost all electronics. All lights, all charger ports, radio, spot light everything. The trim, bidge pump and engine still works. I have moved wires all around thinking I had a loose wire. I checked all batts. I checked the switch I have 12 volts at all. I even checked the ground. it was fine.
Any sugestions
Any sugestions