No there is no harness in the car and had to run my own wires, but there is a diagram that shows which pins to plug into so they are wired right to the original switch , the lights, an inline fuse holder and some wire was all I needed' if I remember correctly, it's been 8 yrs go
I got my lights used from a fellow forum member at a reasonable price, I don't know how hard it will be to find a set nowadays.