Designed for vehicles with switched ground application (typically older Toyotas)

Many Toyota vehicles will have a switched ground that doesn't allow the RetroBright headlights to work right out of the box. This harness is designed to switch the ground back and then the RetroBright headlights can be plugged into this harness. We wanted to expand the great RetroBright experience to the switched-ground vehicles so more people can enjoy the safety and beauty of RetroBright LED lighting.