[wrench87]

that is a ford 3 alternator, the white wire plugs into the alternator, the yellow wire goes to 12 volt constant some people just put a round terminal end and install it to the lug with the red battery wire, the green wire goes to 12 volt key in run position. the red battery wire should be 10 guage and ford reccomends that you use 2- 12 guage fuse links in parallel. i just installed a 50 amp mega fuse holder and ran the wire to my starter solenoid.