[Stick462]

Your problem with the battery going dead after a few hours could be broken wires from the under hood wiring harness coming from the fuse panel and going down and looping across under the rad support to the computer and incar fuse panel.I would check that harness for broken or cut wiring .Ford is known to forget the wiring harness support bracket or putting a loop in the harness before it crosses the rad support giving a place for water and road junk a place to rot the harness.