New to site. I am upfitting a 2024 Ford PIU with a Sound off Signal 400 series remote siren. I want to wire in the ring control so when I press the horn pad it will change the siren tone. I located the green/white loop wire between front seat. How is this wired into the sound off signal unit horn ring in and horn ring out? Will the oem horn still work?
Thank you in advance
Thank you in advance