OK so I decided to get the sockets off my parts car in the woods to show how to remove the wires from the socket since it can be tricky.
the first step is to push down and out on one of the tabs that holds the orange clip in:
Next you do the same thing to the other side:
Here is a shot of the back of the socket without the clip in place (its been sitting in the weather for several years...yours will probably not have the junk behind it):
Next you will need a thin piece that comes to a point like a thick needle or something. This is important because you have to get under the clip or you will not be able to lift it...a thumb tack will work if its long enough.
you angle the tip down until you get under the clip that holds the wire in place and then lift up and pull the wire right out:
