Peanut Butter

Put a little dap on a paper towel, rub it onto the area on the black plastic trim with the white wax stains.
Then wipe it off with a soft towel. The oil in the peanut butter takes out the wax stains and if you get some
on the metal body parts, it rubs off much easier than Back to Black or Armorall.

I posted this pic on a Jeep Liberty forum today on the same subject...