Any way to connect older Bose Jewel Cube speakers to a Bose GS 3-2-1 Any workaround would be appreciated?

Bose couldn't repair my old Lifestyle system (19 good years) so they sold me a GS 3-2-1 system. I managed to keep the old Jewel Cube speakers and would like to add them to the 3-2-1 Everybody says you can't, but I'm betting some audiophile out there can tell me a way to do it.