How to de-pin/re-pin automotive connectors in 7 easy steps like a pigtail expert. Find the right tools, remove the front cap, release the catch, release and pull, insert the terminal/pin. Video tutorial availableA pigtail is a simple wiring technique used when installing electrical outlets, switches, or other devices inside a junction box. This can come in very handy for. This video will show you how to remove wires from pig tail connector and also how to unplug pig tail connector, thanks for watching. We have most of the ones you need, here.