Welp it's time to break my headphones and maybe make them even better; here goes!
(Following this guide:
https://itslennysfault.com/diy-replaceable-headphone-cord-mod-to-use-sony-mdr-7506-with-a-straight-coord-yes-like-beats-but-still-better/comment-page-1)
@mawr I don't have appropriately sized spare wire, so I'm using the wire from the cable. It's insulated with super thin epoxy or something, so I have to burn that off the tips, first.
@mawr next is the wiring of the headphone jack! Wiring up for a test first, then solder, then heat shrink tubing to seal it up all nice. ^^
@mawr and then the headphone jack goes in! That was a pain to screw into place. I also drilled and cut into the retention bracket to make enough clearance to fold them up. ^^
Done with part one! On to part 2...