I have a 85 740 gle. My intermittant stopped working and now my wipers won't park, they stop at the spot they are at when I turn the switch off. So far I have replaced in this order, the relay, the motor, and the switch/lever on the steering coluum. I'm thinking next maybe I have a bad connection in the fuse box. I heard the horn and the wipers are on the same fuse and the horn seems weak, maybe that's a clue. Any suggestions?