Hi guys
right, need to get the alternator wired up on my ERST, but my donor car had a well bodged wiring arrangement going to it so need to start from scratch and build a new one. Heres the back of me alternator and some letters so you know what im on about

Right, now im guessing that B and C(right) are the main feed wires which are usual red battery cable? do these two join together and then join to the starter motor?
Now i know that one of the wires should be blue and runs to the light on the dash board, but where exactly does this wire join the loom, hows it routed,what rating is it and does it join to terminal C(left)or A? And im guessing the remaining one will be for earth, but where does this earth wire run to?
Hope someone can help with this, it would be very much appreciated
cheers guys
Danny