I'm sure the OP got his wiring figured out a long time ago, but I thought I'd bring this back to life to answer the question in case someone else finds this in a search. On a 1988, (I don't know about any other other years) the large (2 ga) wire runs from the battery to the large post on the starter. The purple wire connects to the small post on the starter. There are no other connections at the starter. The red/black wire runs from the junction block down the back of the engine, past the starter where it joins up with the large (2 ga) wire and runs all the way back to the battery. The alternator charge wire runs from the alternator to the junction block. There is no charge wire from the alternator directly to the battery. Hope this helps someone.