yer black/yellow goes to ign like when u get reds
thin white which is on 3 pin plug can be joint to the think white wire
the thick white wire which goes on the big bolt/nut on the back of alternater goes to the positive side of the battery
u dont need the original external regulator if its got one
but if it does have an external regulater then one of the wires on the plug for it would go back up to the dash for the warning light and one of the wires might even have 12 ignition