Hi All, I am new to airheads and to this community. Excited to be riding a 71' R60/5. The bike I have is in great condition, but it did not come with a horn installed. I did buy a horn from Max BMW, and tried looking for the wires (2 green and 1 black) under the tank but did not see any. I am working off of the electrical diagram from the workshop manual, but am not having any luck finding the wires. Is there anyone out there that has a photo of the wiring to the horn or any advise that can help? Thanks.