I think this is more the type I have. one button/switch per sound.
I reached out to Rob at Replica Props and he cant help as he no longer has the code for the sound chips. He hasnt sold them in years.
GBfans shop have been really helpfu and offered me the sound files and some degree of coding but I havent had the chance to explore it. What I am worried about is by doing a fresh program o f a new sound board might not intergrate with the Arduino as it does currently, ie light sequence changes as you hold the intesify button on etc.
a small part of me had hoped I would be able to find a copy of the original sound chip coding that would simply work in my pack. As said in my original post…it was a long shot.