if you are speaking of the manual controls you can literally find them anywhere at any salvage yard. Most Intrepids have manual controls, whether first gen or sec. generation, at least the ones I've come across. The ATC controls too, they're just not as popular in yards as the manual ones are.
I forget how much they run but my ATC one cost about 50.00 so if you're speaking of manual, it should be lesser. Hope that helps.