I will pull out under hood tun in the am, I tried plugging into the two harness under the dash, all they do is light up the switch?

I changed out the back lights, installed the front signals and plugged them into the harness already there. Now for the signal switch, my dealer gave me two one with a single harness and a second with a double harness and blinker module. Problem can't for where to plug them into that makes the signal work. Tried a few harness non worked.
2021 Z Force 800 ex