Step 5Solder on the rails
Try and keep the first cable hard up against the board on the under side of the twisted ends.
Lay the other cable on top of the twisted ends and hard up against the board. Solder it to the remaining twisted ends.
If the two ends of the cable match up, cut one about 15mm shorter than the other one and put some solder on the end again. oops. This is so that the two cables won't touch and short out. (Shorting out is where the electricity can travel from one cable to the other because they are touching with nothing good between them.)
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