Thanks! I'll keep on searching and when I found the solution, I'll post it here for any future user experiencing the same. Again, thanks for your help!
That’s why my assumption is that it won’t work but I’m curious why every stated listing only says R1, R2, R3, and C3 doesn’t work - that still leaves the L1-L3 buttons. But maybe I’m reading too much into it. It’s not a big deal either way as the...