The pics are not the best but it worked excellent and was a very easy fix If you know how to use a multimeter. You will need a good multimeter and a 5v power source our crappy tire MM was out by .02 of a volt. So we used a old one with a dial and double checked it with a fluke the next day.
The second last photo is what to do with the wires. Their is some really good info on snowest. That's where I got the info from. The last pic is the specs and how to set it.