Originally Posted by Fabrik8

There is a secondary lock plate on the back of the connector that secures the pins from coming out. The secondary lock plate has to be released and moved out of the way. After that is done, the pin can be released with a push pin or thumbtack from the front of the connector. The crimp pins are retained by a little plastic catch which needs to be moved up while the crimp pin is being slid out. There is a small access hole for each crimp pin to access the catch. This is all easy to do but hard to explain without illustration.