If you have a ground on one post of the relay and 12v to another post through a switch, and if those two are on the correct posts, you will hear the relay operate when you hit the switch.Put an ohm meter across the other two relay posts. It should be open when switch is off, and 0 to 5 ohms when switch is on. If this is not the case,relay is bad. If this checks out O.K.. then put fused 12v on one of the relay posts and run wire to fog lights from other post. Be sure to ground fog lights. Thats it.
Garnet Red 69/SS396/TH400/355 Posi
94 HD Dyna Wideglide