Everyone seems to be adapting/splicing/troubleshooting into factory wiring, back to at least 2005 - 2009
there are complete wiring diagrams & loads of other information about just about anything
http://www.dodge.com/bodybuilder/year.pdf
http://www.dodge.com/bodybuilder/2005sbbgl/docs/dr/drwdmo.pdf '05
http://www.dodge.com/bodybuilder/2006/docs/shared/sitemappage5.pdf '06
http://www.dodge.com/bodybuilder/2007/docs/shared/sitemappage5.pdf '07
http://www.dodge.com/bodybuilder/2008/docs/shared/sitemappage5.pdf '08
http://www.dodge.com/bodybuilder/2009/docs/shared/sitemappage5.pdf '09
I suggest that you bookmark your vehicles application
there are complete wiring diagrams & loads of other information about just about anything
http://www.dodge.com/bodybuilder/year.pdf
http://www.dodge.com/bodybuilder/2005sbbgl/docs/dr/drwdmo.pdf '05
http://www.dodge.com/bodybuilder/2006/docs/shared/sitemappage5.pdf '06
http://www.dodge.com/bodybuilder/2007/docs/shared/sitemappage5.pdf '07
http://www.dodge.com/bodybuilder/2008/docs/shared/sitemappage5.pdf '08
http://www.dodge.com/bodybuilder/2009/docs/shared/sitemappage5.pdf '09
I suggest that you bookmark your vehicles application