But the NMS is pretty easy, there is a little trap door in the bottom of the storage cubby in the center console. It just pops out after you remove the liner. Then you can access the end of the cables do disengage them from the equalizer bar.
Same size as the 5BA bolt head. BA (British Association) is actually a metric std for small threads and still very much in use in the world because it has a 45° thread angle, which is apparently better for small screws.