Do I just plug the OEM clip into the connector on the button to have the horn work? I wasn’t supplied with any extra wiring. Also not running a quick release.

 

You have to ground it as well. The part of the horn spring that protrudes out of the plastic housing is a ground. If the horn fits into the hub you're using and that part touches it, it should work provided that your hub is bare metal and it directly touches the spline and bolt.

 

Ahh that makes more sense now, thanks!