Thank you for posting and welcome to the community.
It looks like you do have two different systems that will not be able to be combined.
The CineMate bass module would go with the two smaller speakers, and you would need an Interface Module that connects to the bass module along with the speaker wire that also connects to the bass module.
The best thing to do in this instance is to contact technical support for further assistance with parts.
If you go HERE, select your region, scroll to the bottom of the page, choose "Contact Us" and a phone number will be displayed.