Got a truck which someone installed a basic painless wiring harness and wonder if someone in here still has the directions which would include the back of the cluster. Wondering about the three wires that go to the amp/charging gauge. The previous owner labeled them #1, #2 and #3. There are 4 options and want to make sure they are in the right spot. There are two connected on the left and two connected on the right. The painless site is down and has been for a while. Any help would be great!!

Thanks

1958 Chevrolet Big Window Stepside