I recently purchased (rescued) a 1980 Kubota B7100D-P that has been badly neglected. When I got to removing the dash console, I noticed 2 ground straps attached to the 4 bolts attaching the steering column to the steering gear box, where the bracket for the bonnet hold down springs attach. The ground strap (#1) attached to the left rear flange bolt goes to the negative battery post. The (#2) ground strap (aprox. 30") attached to the right rear flange bolt is attached to ?? I'm hoping someone with a similar tractor can help me out. The shop manual doesn't show electrical ground connections. Any help would be greatly appreciated. Thank you.