Put 1 1/2 cups chopped pecans and 1 1/2 cups coconut in bottom of a greased 9x13 pan. Prepare German chocolate cake mix according to directions. Pour over coconut and pecans. Soften butter and 8 ounce cream cheese. Add 1 box powdered sugar. Mix and pour over cake mix. Bake 300 degrees for 1 hour. Refrigerate any leftovers.