The trick is in finding the sweet spot and the wire pops out with a light tug using your fingers only. If you look into the open end, you will notice the terminal occupying only about one half of the space with a plastic /\ shaped devider directly underneath the terminal starting about halfway down the tube - thats what holds it locked. Take the nail (make sure its thin 1-2mm and pointed) and angle it upwards between the legs of the plastic /\ and lightly apply pressure while tugging at the wire and it should release fairly easy. Note: If you are prying inside the metal area youre in the wrong place and you will damage the terminal. Hope this helps.Apparently I'm the idiot that this isn't "proof'd" for. No luck on releasing the wires so far. I've run pins down both sides, and pried everywhere I can pry, and nothing moves. I'm trying to be real careful not to bugger the female terminals, as I don't want to end up with the problem the OP had. Are the retaining tabs in the white piece in the sides or on the top (opposite the split in the female connectors)?