I just saw your potential printed adapter and WOW! is all I can say. I had no idea that when I put it out here on this post, it would spark your interest that much so as to come up with a design and actually do it, that's pretty awesome! Sometimes I guess you never know when something like that will create a spark and start lighting a fire, that's really cool, I'm glad I could help. I've got this feeling people are going to want these. I know I'll be holding off cutting that hole for the speaker terminal cup until I get the firm word from you on when it may be in production, I'll be the guinea pig, that's okay...lol One thing though, looking at it from the underside, it looks like a brake pad. If there's any way you could make it circular or square for regularity purpose of cutting it out. Makes it easy when you have a 3" hole saw, know what I mean? Just looking at practicality.