Thanks,... I'm trying to keep this UNO small (and I already have a box with ports cut out to the Arduino UNO dimensions). That's why no Mega.
You say none of this can work,... but I don't see why I can't desolder the jack and turn it upside down and use it separately from the Arduino. Once the sketch is loaded the jack is no longer needed
I'm not sure I have made it clear what I am trying to do (if so, I apologize for my lack of clarity)