Do you still have the old digital dash in there?I actualslly the factory installed automatic one out and hard wired a 1250 automatic pump that was totally self contained. it was wired directly to the cranking battery w/a inline fuse on the hot wire. The main reason I did this, was in a total power out, I knew I had a large pump that would exit some water, and it could be moved and rotated to differnet batteries if that would have been needed.