Any factory service manual has the necessary diagrams. What specific problems are you having with the cruise? There are several known problems with those. Two things to check right off are the wires that go into the cruise switch on the turn signal stalk, they often break where they twist when the switch is operated. The wires are partially exposed at the entry point, thats where they break. Also check the switch on the brake pedal, not the brake kight switch but the other one.