99 Interpid. Bought it used. It's always had strange things happening like the interior lights blink and fade without touching them, the trunk latch goes crazy, the horn honks out of nowhere. . . It started dying in June, so I had the alternator rebuilt and battery replaced. It was fine until this past weekend when the battery light came on during a trip. It finally died. I jumped it and took it to the place that rebuilt the alt. They said the battery cable was loose. Now it starts and drives, but the horn honks occasionally and the AC/Heat blows on high constantly even when its power is off. Any suggestions or do I need to perform an exorcism?