I have a '93 SC that has developed a mystery problem. Sometimes for no reason it will not start and I can hear a clicking noise that sounds like it is coming from the back wheel well. It appears as if it has no juice at all. If I disconnect the negative battery cable and re-connect it, it usually starts right up. I cant seem to find a blown fuse or loose wire and the battery checks out ok.I haven't done anything to the car recently. Any suggestions? I'm stumped...