Butter knife between the 'sewn leather' of the knob seen above and the 'boot leather' to pop the boot leather down. Then there's a single T15 screw holding the knob to the shift stalk.
It was a popular mod on the 2006-2009 Fusions to swap in this style knob from the 2010+
It was a popular mod on the 2006-2009 Fusions to swap in this style knob from the 2010+