INSTALL KC 335 on 2021 Jeep JL w/AUX switches

I need some guidance on how to wire the harness and take advantage of the AUX switches.   I have seen the procedure to use the AUX switch 3 wire and connect it to the RED lead. then the Black to GROUND.   But what do I do with the lead to the rocker switch that is part of the harness???

Looking for some help here