Guys, that's the Street Scene wiring harness which requires the use of their toggle switch since v6's without the Pony Package do not have foglights. It's not meant to conform (for a lack of a better word) with the stock GT/Pony Package foglight switch. Let's just say that it's more trouble than it's worth if you are trying to use their wiring harness with the OEM headlight/foglight switch of the Mustang. I have the same wiring harness that will be used to install the foglights on my car for the GT500 bodykit (I'm only using the pigtails...everything else from the GT500 foglight wiring harness gets scrapped).
In short, it's not their revolutionary foglight harness...it's some schmuck on E-Bay who I feel is not giving the full disclosure of the product he's selling on the Internet. Now if he actually works for Street Scene, then I'll glady eat my words...but if you look at the .PDF on Street Scene's website and this E-Bay auction, you can see the harness is identical as well as the toggle switch to activate the foglights.
Hope this helps.
If I'm wrong in anything I said here, someone please feel free to correct my information.
For Play: 2011 Ford Mustang v6 Premium Coupe w/Pony Package. Stock...for now.
For Work: 2011 Hyundai Sonata SE. The fun daily driver.