I bought that exact kit (have bought several items from this seller - very reliable) from those folks for my 14 V6 Prem vert. They work great, BUT, you will need a switch, (Amazon.com) and additional wiring kit. As a side note, with the switch, you also will pickup automatic headlights too. I got wiring kit off ebay & will try to find in a bit. This kit is to replace GT fogs from the grille to the valance, thus the wiring plugs into the existing GT wiring at the fogs in the grill - thus too short for our application.
Starkey kit is great, but I saved $100+ by getting this kit, switch from Amazon & wiring kit.
There are two thoughts on wiring at the switch, Starkey one way, AM another. One tells you to splice, one says to cut. I used T-Connectors and did not cut. One also says to power lead to low beam head lights - thus fogs only work when low beams are on. I put my "hot" lead on a spare terminal in the fuse panel (there are several). I often use my fogs with parking lights in rain or before it gets dark.
This really isn't as hard as it may sound. Did mine in a couple of hours, but I'm OCD on running & securing wiring. I'll look for the harness I used and add later. If you want PM contact info & we can talk about it. Glad to help-they really work great. Nice & bright, fill in the dark space between hood & lights at nite.
This kit I used is from a guy called stuff26 on ebay and is for a 2013 Mustang V6 with Fog Lights Wiring System for use with OEM switch
$118.50 + shipping - switch was in the area of $20 shipped.
Again PM with any questions.