WARNING: This page is about a different car, the 2006 Mercury Montego, 2006 Ford Freestyle, and 2006 Ford Five Hundred. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Identifying Interior Trim Code
Courtesy of FORD MOTOR CO.
Interior trim codes are a 2-part code. The first character listed, identifies the interior trim type. The second character listed identifies the interior trim color.