MITSU S-JIHP: Sega JVS I/O Helper PCB

You could wire a usb adapter to work with this. You would need to make a custom adapter like in my video.
 
Hi,
I modded 2 Revolution X guns to play shooting games on Sega Lindbergh multi.
They both work well but I have to run wires from my 2P DB25 adapter (pin 10-11) to 1P DB25 adapter (pin 12-13) because 2P guns uses AD2 and AD3 to work for gun X/gun Y on 1P.
I would like to remove these 2 wired and add wires on S-JIHP helper itself.
Is it possible to remap 2P AD4-AD5 (wires that comes from pin 10-11 of a DB25 2P connector) to 1P AD2-AD3 on S-JIHP ?
Could someone show how to proceed ?
 
As I'm saving up for a Naomi 2, I want to adapt my custom wheel's DB15 pinout to the S-JIHP's pinout (standard DB15 gameport connection) so I can easily adapt my modded wheel to JVS systems. Is there a high quality female to male DB15 adapter I can purchase online that will let me jump the pins of my schematic to the pins the S-JIHP wants? Most of them seem to be sold out or discountinued.
https://www.l-com.com/d-sub-plastic-pcb-jumper-box-db15-male-female

My schematic was meant to work on Model 3 but I'd like to save myself a ton of time. Fortunately, most of the Naomi driving games actually require fewer buttons than Model 3, since all games used only one view button instead of 4.
 
As I'm saving up for a Naomi 2, I want to adapt my custom wheel's DB15 pinout to the S-JIHP's pinout (standard DB15 gameport connection) so I can easily adapt my modded wheel to JVS systems. Is there a high quality female to male DB15 adapter I can purchase online that will let me jump the pins of my schematic to the pins the S-JIHP wants? Most of them seem to be sold out or discountinued.
https://www.l-com.com/d-sub-plastic-pcb-jumper-box-db15-male-female

My schematic was meant to work on Model 3 but I'd like to save myself a ton of time. Fortunately, most of the Naomi driving games actually require fewer buttons than Model 3, since all games used only one view button instead of 4.
What wheel do you recommend. For model 2/3 naomi? @PaulWoodpross3r
 
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