Plug in and turn on your soldering iron.

Set it to the lowest temperature possible (if applicable).

A soldering iron can get very hot. Set it aside at a safe spot after turning it on

There is a distinction between what a "wire" and a "cable" is. I will refer to the "cable" as the entire whole of the cable, and the "wire" as the two exposed bits of colored copper at the ends of the left and right sides of the cable.