Hey guys I wired aftermarket foglights wires in my 03 Ranger. I originally didnt have stock fog lights but I changed the bumper and valance to have them. I bought the wiring harness ofline it came with the wires and the relay and such and now they arnt working at all. I'm not sure what is wrong any ideas

 

Did they work before and quit or they won't light at all?

 

They worked before I changed the aftermarket switch cause I thought that was the problem before and that fixed it now again they don't work I bought the wiring harness of eBay now they don't even work anymore

 

They work Saturday of last week then didn't work Sunday night then Monday I changed the switch and they worked for that whole day then Tuesday night they stopped working again now I don't know what's up

 

improper wiring? no ground? blown relay? blown switch? blown fuse? something came unplugged?