Wiring and Organizing Your Documentation: Understanding Optimal Routes Introduction This is the third and final part of creating electrical documentation. Stay locked in because this is the most extensive part! 3.1 - Wiring Power  3.2 - Wiring CAN 3.3 - Labeling Wires 3.4 - Creating a Components Page 3.5 - Creating a Key 3.1 - Wiring Power In order to begin planning for wiring the electrical power system, you must understand where power originates. The battery. Add your 12V battery to your schematic.