So when I was installing my head unit an had the center console piece out, I saw what I believed was a plug for the ambient control switch on the center console piece. Is this possible? Its an 08 gt premium. I already built it in my own foot well lighting, but I'd love to have the cup holder lighting.

 

if you have a manual shift, i think what you saw is a connector for a auto shifter. jim010 has a huge writeup on here on how to install that. have to do a search

 

Ohh maybe that's it.

 

here is jims thread on installing factory lighting, it was a few pages back
https://themustangsource.com/f692/fa...ghting-468926/