here's a pic and a link to a popular mechanics magazine page that may help more with what your doing..
the link to the site i got that pic from..
http://www.popularmechanics.com/cars/how-to/maintenance/1272556
hope that helps more..
the light strip would be were the trailer lights are in that pic..

the link to the site i got that pic from..
http://www.popularmechanics.com/cars/how-to/maintenance/1272556
hope that helps more..

the light strip would be were the trailer lights are in that pic..