I have a 1994 Dodge 350 van 5.2 litre engine. It is the platform for a Road Trek mini RV. I did not start it for about five weeks - it ran fine before that - and now it is DEAD. None of the electricals work, won't turn over, no interior lights, the auto unlocking doors don't open, no horn, etc. Battery tests strong, terminals are good and clean and tight as I just cleaned them. (they looked as if they didn't need cleaning). A bad fuse was one of my first thoughts but my owners manual does not show a main fuse.
Any thoughts on what to do next?