P4 position is designed to plug into the original harness. I am not a fan of multi boards with jamma plugs. I think upgrade PCBs should plug into the original harness rather than encourage people to convert something to jamma. I suggest you fix the original ar2s and harness if possible. @andrewb can repair those here on klov if you want.Hi Jason!
I just bought a PP cabinet with a wiring harness and other things covered in mouse pee. I would love to trash the harness and eliminate the ARII's, big blues, and original power supply in favor of a Jamma setup with your new board kit. I am attaching a pic of a product that could make that happen in theory, but I wanted your input before I ordered it. Please let me know what you think about this adaptor and your board, with a Bob Roberts-style power setup and a quality Jamma harness.
Thanks!
If this adapter you speak of can work with the original PCB it should in theory work with p4 position.

