Preheat oven to 350°F. Spray a 13x9 pan with cooking spray.
Sprinkle 1/2 cup coconut and 1/2 cup pecans into the bottom of the pan.
Mix cake mix, water, eggs, sour cream, and 10 oz Coco Lopez for 4 minutes.
Pour batter over the nuts/coconut and bake for 30 minutes (or per box directions).
Cool slightly, then flip onto a cake plate. Cool completely.
For icing: Mix cream cheese and the remaining 5 oz Coco Lopez until smooth.
Gradually beat in powdered sugar until creamy.
Spread icing over the cooled cake and top with extra coconut and pecans.