if you open up the plug there maybe a way to push the pin out, then you need to find a new pin for the end of the wire, easier said then done.

this is why a new pig tail works.

maybe find one at a junk yard, and try to pull a pin with a wire on it out of the plug, then you only have to solder one wire. if you can get the pin out. sometimes theres a little lever/lock next to the pin you push and they come right out, others not so easy.