I had the same problem deciphering which wires go where. Here is a picture of an installed wiper motor I took at a junkyard. No real way of knowing if it was right, but I have seen at least 2 trucks wired this way so I assume it is.
What I could not find is a ground strop under any of the rubber grommet pad things. If you click on the image you can see yellow on bottom, then light blue, then black. I think that's on the wiper motor. For the washer you have dark blue on top, and 2 yellow on bottom.
Hope this helps, lemme know if it works out.