Starter wires

I inherited someone elses problem. The engines in the cradle but none of the wires/sensors were hooked up, most are easy enough, but I want to make sure that I hook up the right wires to the big post of the starter. I have the battery cable, plus a set of 3 red wires connected to one post connector, one of these red wires (about a 10 guage red wire) runs directly to the alternator, the third set of red wires is the question. It is four red wires all hooked a single post connector and the run back into the wiring harness, does this also belong on the big post of the starter?