Orange-Pineapple Cake

1 box Duncan Hines Butter Cake Mix
4 eggs
1/2 cup oil
1 - 11 oz. can mandarin oranges with juice

Mix above ingredients.  Pour into 3 greased and floured 8" cake pans.  Bake at 325 degrees for 25-30 minutes.   Cool before frosting.

1 large can crushed pineapple with juice
1 - 3 oz. package vanilla instant pudding
1/2 cup coconut
1/2 cup chopped pecans
1 large container Cool Whip

Mix first four ingredients.  Add Cool Whip last, mixing well.  Put between layers and on top and sides of cake.