I wasn’t worried about that. I tend to assume I’ll figure things out. And indeed the wiring for the headphones is “cut a 3.5mm cable, solder the leads to the pu

I wasn’t worried about that. I tend to assume I’ll figure things out. And indeed the wiring for the headphones is “cut a 3.5mm cable, solder the leads to the purchased headphone speakers.” The only thing I brought to the table was design of the enclosure for the headphone driver, which can’t really create bad loud sounds.