Here I go again. Time for installing the unit. After soldering the potentiometer and three other connections I went looking for the confirmation of what Haynes says. All the connections were as I expected. First thing I clonnected the earth from my kit to the nearest available bolt; see pic After I realized I have to cut off existing control unit in order for those two not to work simultaneously I stole power from that connection (yel/blu) and chose low motor output (blue) to be used while working intermittently. You can always use the high speed one (blu/yel). Important! I did not cut the motor wire (blue). As you can see in the above pic there are two yellow/blue wires. Confusing isnt it. Counting from the right (the bigger wiper plug) there is blue - low speed, blu/yel - high speed and yel/blu - 12v from the switch. Those 3 are the only wires you are interested in. Almost done, all connected Only the potentiomenter left to be fitted. The position is really all about personal preferences as well as the look. I just picked what I had. And the job done. Two comments I need to make. Only 2 pins on the potentiometer need to be cnnected; the middle and any of the other ones. Whichever side you pick will make the wipers go more or less often depending which direction you turn the knob. Still, a matter of ones prefernces. Secondly, the low end is pretty useless because the magic happens every 1 or 2 sec. Thats it I guess. I hope somebody will make use of this idea. If not at least I contributed a bit. Wish I could do more.