So during the Covid-19 quarantine, I decided to see if these "Flip" Style keys would work on my 2012 Mustang GT. To my suprise, they definitely did. Here is a full how-to on how to program to both the car accessories and the ignition itself.
Link to Keys (Price increased by 10.00 over the past week?)
https://www.ebay.com/itm/2x-Upgraded-...