2013 se hatchback fog lights

I recently purchased a lot that came with the dog light the harness and the screws to strap it down however my focus before this just had the black plastic covers so I was not sure if they ever even worked now my question is where should I look for the wire to connect to the fog light coming from the car because I looked back there and there’s nothing I can see

but it came with no wires and I can’t find no wires coming from my car