Re-terminate speaker cables


I have a pair of audio quest rocket 33 cables that are biwire. I want to have them changed to full range with spades on the speaker end.  Audio quest is unresponsive.  Is there another resource to get this done?
ppack
Would I be combining the two ends that says treble together and the two that’s labeled bass together?  This is solid wire and it seems pretty thick.  Would I be able to find DIY connectors to join these?  I guess it won’t look as slick as the original.