Hi, I have an arcade cabinet already wired up JAMMA, however, I need number 15 on the harness to hookup an interlock switch so that I can negotiate the multi board menu system. The entire wire and pin is missing, there's just a hole there. I've purchased pin after pin but can't seem to find what I need to insert into this hole and run a new wire. I don't want to wire directly to the jamma board as this is a 500 dollar unit. Not worth ruining. What is another way of getting this stubborn number 15 pin to work for me ? any ideas ? The hole in the harness seems to be bigger than the standard jamma harness of today, this is an old cabinet.