for the firewall bulkhead, the male terminals: one leg is unsupported but you cannot (easily) tell which one it is when they are installed so press each side & the one that moves, press it closer to the other leg untill the pigtail will easily pull out the back side. the female connectors, there is a mini slot on one side of the bulkhead rectangle the terminal is in & stick an eyeglass screwdriver in & flatten the tab flush with the terminal (you cant see it) & move the screwdriver in parallel as opposed to angle leveraging it and when it is flat you can easily pull the pigtail out the back. Dont force either by pulling hard, just work the terminal some more. If your connectors are the same as these then there ya go.