Fog Light Wiring Diagram

My buddy bought an aftermarket fog light kit for his 2009 xb. He tried to use the factory wiring instead of running the new wiring harness. The lights plugged into the existing harness with no issues. We had to splice the aftermarket switch plug onto the harness for the fog light switch because the aftermarket switch was different from the factory switch. He verified that the relay was installed. The lights still do not work. Does anyone have a wiring diagram for the fog lights? That seems to be the only thing I can't find on the internet for this vehicle! Any other tips or suggestions would be helpful. Thanks