GM style Weatherpack terminals are available through Painless Performance. Weatherpack connectors are favored by wiring professionals because of their waterproof characteristics. These are awesome for connecting any electrical accessory on a vehicle, but it is important to understand the way they go together first. The little green boots must be installed prior to stripping the insulation off the wire. Next place the correct male or female terminal pin so that the crimp section will surround the exposed wire.