On a flat black dash of an earlier Gen II...use only a damp cloth. Do not use Armor-All or any other type product, as the dash is painted....NOT molded in color.
(Later Gen IIs with the textured, pebbly look dash are molded in color.)
Avoid plastic and vinyl cleaners as well as it couls damage the paint. I know that Stoner used to make an interior trim cleaner that would wipe the paint right off plastic.