Add electrode to Muse 2 through Right Aux (URGENT)

Can I add an electrode to the Muse 2 through the Right Aux? I really need an occipital lobe electron but the Muse 2 doesn’t have one. I have seen tutorials and tried them, but nothing has worked. Perhaps it only works on the Muse 2016? Has anyone gotten this to work on the Muse 2?

Btw, in a hackathon right now! Would love to hear a response within the next 24 hours!!! Thank you so much!