The 90s were the heart of the "sport truck" era so most dealers had accessory packages and often dealer installed extra accessories too. This is where having any original paperwork is very handy, to suss out what actually is "original" and "factory" vs. dealership installed.
Attached is a PDF file of the window sticker and a " dealer installed options tag " for a trim package $279.00 but I am not sure what the trim package included...