This 1999 Cadillac Eldorado has had problems from the start. But lately it's gotten more. At times the gas door opens, the trunk releases and opens, the seats readjusts and the battery goes completely dead so it won't start at all. No clicking, no lights, no nothing. Then after a few hrs, days it starts like nothing was ever wrong. The last thing was, all the above and the load leveler was buzzing. That was disconnected, and all is right with the world. Was that the problem? I don't really think so, but for now, things are ok. Any ideas?