This is really for my fusion and not my Mustang but I'm hoping someone mioght know if they are the same. I'm wonderiung how the actual lock cylinder is removed from the assemby. Most of the video I've seen pertain to the F150s and are similar at least regarding the ignition switch on the opposite side but there is a housing on the fusion that visibly prevents access to any type of pin hole to release the cylinder

These pix are for a part...

Ignition cylinder removal