Mahjong Panel on Egret II?

Anyone ever get a mahjong game working with their mahjong panel on their Egret two from Bib's order? I have my ST-V with Pro Mahjong Kiwame S in my Egret II with the mahjong panel and have the game set to Mahjong panel input, but none of the buttons register...

Any ideas? thx!

One thing I think may be the problem is that they are all wired for straight jamma, but the mahjong games have a kind of "kick" harness from what I've seen. My Egret came with the mahjong control harness, but not the required extra "kick" harness to plug into the board.

So that makes me think they were all converted to straight Jamma unless requested otherwise.

coinopexpress sells mahjong harnesses.

EDIT***

My STV manual says that CN32 and CN21 are used for the mahjong panel, but does not give the pinouts. Instead it says to consult the game's manual, which I can't find on the interwebs. Sorry.