I cut mine, but I have looked at the PDF, Dave supplied in the other thread. Look at the top of connection, where the brown wire goes in. It looks like an E. There is another price that surrounds the E. It is a plastic piece that holds the wires in place. I had that unsnapped at one time. Put your small flat screwdriver, in between the E an the piece that goes along it on the sides. It forms a U shape that holds the wires in place. Had I seen this picture, I would have been more inclined to finish removing that covering , then sliding it backwards. You can clearly see 2 slides on each side, of the bottom.
Did you get the air bag light unplugged?