I am writing this, wondering if this was a factory option or an aftermarket accessory. Maybe someone could help. It's this little slot in the dash of my 84 cj-7. Sits right above the ashtray. It takes money. At unspecified time intervals you must put in a twenty dollar bill. Where does it go from there? Just seems to disappear. Every couple hours driving time you must deposit money. Twentys are accepted but fiftys and hundreds are prefered. Just wondering if this is from factory or if previous owner had it installed. Can it be removed?