From your description it sounds like you did it correctly. The pin connectors can certainly be used with the spring-clip speaker terminals on a speaker.
Assuming that the wires from the wall plate that run through the wall are actually connected to the other end where the pin connectors come out, maybe the issue is with how you connect to the wall plate.
If you unscrew the connectors on the wall plate and wrap bare speaker wire around them you might not be making a connection because the wire would be touching the plastic wall plate and not making contact. They might actually be binding posts where you could try just inserting a banana plug instead of wrapping bare wire around them.
Pictures would help if that is possible.