When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
Challenger08,
Not sure on the '03. However if you have the regular cab, like my '04 has, it is behind the passenger seat under a cover along with the lug wrench and jack tools. extended cab should be in the center of the rear wall of the cab, again under the cover with the jacking tools.