My 92 Fleetwood Flair was running great last summer. Now the starter is barely getting enough juice to turn over a bit and if I do get it to start the plugs are barely getting enough juice to fire at all and then it dies. Even with new batteries and a jump start. Its like the batteries are cut off or else there is a major short. I don't know if that unit has a battery cut off switch or where the relay is for it. There are no switches anywhere around the doorway. It has a new alternator and coil and a dozen other things and all grounds are cleaned and good but she won't go. Any help would be most appreciated.