How do you separate the wire terminal from the plastic connector? I have tried for 3 days to figure it out. It seems like all the connectors are about the same but the ones I am working on are the ones around the thermostat housing. When I started I thought all female connectors had a tang on them that clicked into the connector to lock it. I have put everything I can find except my penis into every hole in the terminal to unlock it. The wire does not come out. I am sure it is quite simple but not as simple as me. New terminals are not available it seems.