I got a big problem I got a 1990 Fleetwood southwind 30 ft with a Ford chassis now I was having problems starting it ran out of gas a few times and the battery keep dying now I got a full tank I just replaced the battery and changed out all the fuses problem is now all of a sudden if I connect the battery the engine wants to start on its own even when I have no fuses in the fuse box under the dash and I have the key in the off position can anybody tell me what the problem could be