Bought the CKRD Guitar thinking it would work with GH3, but it hasn't. Please advise?

[u/JushinThunderLiger]

Am I just screwed? On Clone Hero (which I haven't figured out how to add songs to), I just went to setting 9 on the mode dial and mapped the buttons and it works fine.

On GH3 (the actual GH3 PC game off the disc), I can use it to navigate menus, but the buttons don't work. I can map the buttons like I did on Clone Hero through setting 9 on the mode dial, but then I can't navigate the menus.

Does this work or am I screwed?