bert wrote:

This might help
https://www.google.co.uk/url?sa=i&rc...ages&cd=&cad=r
ja&uact=8&ved=0ahUKEwjIxfuVtOXQAhUFWxQKHcLXBVcQjRw IBw&url=http%3A%2F%2Fww
w.towbarandtrailercentre.com%2Fwiring-diagrams-18-w.asp&psig=AFQjCNHiMBJY
deDGM1tq9riRP6TLCPwBQw&ust=1481314363282474

Jesus! what's wrong with shortening stuff?

http://towbarandtrailercentre.com/wiring-diagrams-18-w.asp