I managed to modify the usb cable and it solved the ground loop, but there’s still a very high pitched tone coming thru when the usb is connected. I can at least use the control app now, but unfortunately I still have to unplug it when I want to actually play.
I did some reading and looking and tried modifying my c:windowsinfbth.inf file to include my BT adapter so that ‘hopefully’ the control app would see it, seemed like my most promising solution but that failed too.
Hopefully I can learn more about this today….