I would suggest going to this thread, page 8 (which the link should take you to) and scroll down to post #154, then after reading that, scroll down to post #160 and also follow the link provided there:
https://audiokarma.org/forums/index.php?threads/headshells-leads-ta-wiring.872655/page-8
This will take you to an old thread by restorer-john, most appreciated forum member, who first reported on the matter, and provides a link to vinylengine that takes it even further as far as harvesting clips from certain computer parts.
You will not be disappointed if you are interested in saving your $$$ while getting some premium Litz wiring and cartridge clips of high quality to boot! The tinning of the wire is really simple if you follow the steps in the Cardas video that you can view here:
I'm not a great "solderer" and found it very workable once applying the superglue mentioned in the Cardas video. You do not need a soldering pot, although I suppose that would simplify matters even further. I simply applied the super glue as instructed and then heated the wire while applying flux first, then solder continuously until the end of the wire was nice and silvery.....tinned very well, in other words.
If you are like a lot of folks, those Apple earbuds don't work in our ears as they always want to fall out. I had several sets in a drawer that came with Apple products I had purchased (iPod, iPhones) and have enough on hand to make a bunch of tonearm wires when the need arises.
Good luck with your project and let us know how things turn out.
(PS - I made a wiring "loom" from this stuff for my Nottingham Analogue Studios Spacearm that needed re-wiring. I cannot tell the difference in sound between this and the original silver Litz wiring that was used from the factory.)