How to splice wires - how to solder, how to crimp, wire connectors - Make It Easy Mechanic Splicing wires using various tools and methods, discussing pros and cons. (how to solder: using soldering iron, how to crimp butt connectors: using crimping tool, self solder connector, heat shrink tubing) 3 ways to splice a wire. How to connect wires. Proper joint of electric wire.