Remove the core of your Paracord (you need 1.5x of Paracord to wire length about (depending on wire thickness)
Sleeve the Paracord over your wire. That’s the hard part. (My trick has been to solder a length of thick magnet wire to one side of the wire and use it as a needle to guide the wire down the sleeve.
Add all the heat shrinks and connector sleeves you need
I’d be interested in a tutorial on this. I’d love to make some cables like this for the home stereo system and AV system.