yeh for ep82's they were roof mounted, but ep91's or some ep91's were in the parcel shelf, theres a rectangular cut-out in centre on ep91's underside of parcel shelf for this. I just cant figure why they need 6wires, theres no light. Maybe a high/low function, auto on with ign, switched on. Can anyone shed any info on what the 6 wires would be or a diagram.