1 box Duncan Hines butter flavor cake mix
1 package (3 3/4 ounces) French vanilla instant pudding and pie filling mix
1 cup (8 ounces) sour cream
1/2 cup milk
1/2 cup vegetable oil
1 stick butter or margarine, softened
4 eggs
1 six ounce package chocolate pieces
2 ounces German's Sweet Chocolate, coarsely grated
1 cup chopped pecans

Frosting:
1 eight ounce package cream che