I have a 1967 Series 2A , and I purchased a new wire harness. The old alternator has three wires, white, black and Red. I would think Red was positive, Black negative and white ground. the new wire harness has three wires that connect to the alternator, small wires yellow, brown, and one larger wire also brown. WHICH WIRES DO I CONNECT TO THE ORIGINAL WIRES???? I would think the large brown wire was the positive and should be connect to the red. The other two I'm not sure and need help.
On the other end of the wire harness I have the same three colors and a green wire. I have made all those connections except the brown wire again. It has a round terminal on the end, not sure what it connects to????
I would appreciate any and all help with explanations, diagrams, pictures, web sites, ect.