I don't think you can remove those wires in the bulkhead by depressing plastic and wiggling. I have always had to insert a small thin blade, right where the little notch is in the plastic to depress the copper tang on the female wire end, the male connectors require a squeeze to remove them. Once you get them out you will see that a cheap crimp tool will do you no good, as they are made for the cheap yellow, red, blue crimps, not factory stuff. You can make a nice crimper out off a cheap pair of pliers drilled to make it round, and finish it off with a dull chistle, right in the groove to tighten it up. If anybody knows of a correct tool for mopar ends im all ears. So make your own tool or solder. A crimp made in a vise, or with a hammer is way tighter than anything you will do with crimp pliers, no safety issue there.