1995 Fleetwood bounder flair. Just got it and first motorhome. Started fine and drove home over 100 miles. Next day, turned key and just got a click. So without knowing anything about the auxiliary start button, I hooked up battery charger. Flipped it to high amperage engine start and tried to start. I got nothing, not even a click. Tried charging battery and tried 2 different chargers. Both said that the battery is charged fully. Checked to make sure cables were tight and they are. Found out about auxiliary start and tried it, nothing. Checked all fuses under hood and under instrument panel, all good. I'm getting power to the solenoids but not fuse box under instrument panel. So I'm thinking there's something between the solenoid and fuse box that I blew when I hit the high amp engine start on the charger. Does anyone know what to look for or what it might be. Any help would be greatly appreciated.