Old alternator stopped charging on my 97 TJ sport. I grabbed one off a 99 wrangler (while grabbing water and power steering pumps). I grabbed the connectors too thinking I would just be able to splice on the "new" end and be ready to go. Looks like the old harness connection has the same green/orange and green wires, but also has the heavy gage wire I'm guessing is a ground? Can I do the splice and ignore the ground? I don't see another spot to connect it in the new alternator...