An electrical connector includes wiring with multiple wires. Each wire has a conductor covered in insulation. Each wire has a stripped portion that exposes the conductors. The stripped portions are stacked on top of one another. A housing has first and second housing portions that provide a cavity. The first housing portion receives the stripped portions. The second housing portion includes a spring that has a closed portion that extends into the cavity and is configured to urge the stripped portions into engagement with one another when the first and second housing portions are secured to another in an assembled connector condition.