Welcome to the site.First, learn to use the search function as much of this has been previously discussed.Read this thread: http://forums.2gnt.com/dcboard.php?az=show_topic&forum=54&topic_id=4891&mesg_id=4904Also download a copy of the service manual and reference the wiring diagrams. Reference the wire colors and you will understand which wire goes where.http://nawdu.de/files/
---2012 2500HD LML