1991 735i. I have no manual and I can't find the positive post under the hood. Actually, I think I've found where it's supposed to be, but there's no post there. When I stand on the driver's side, I see something immediately left of the fuse box. Think of it as a cube with the top and two ends missing. About 1" wide, by 2" long by 2" deep. At the bottom center is what appears to be a pair of metal leads folded down. There's superficial damage, and I can imagine that there was once a post rising from one of these downfolded pieces.
Is that it? If so, any suggestions as to how I can go about jump-starting the car?