Spread Cranberry-Ambrosia Filling between layers and on top of cake. Reserve 1 1/2 cups Cream Cheese Frosting, and set aside. Spread the remaining Cream Cheese Frosting on sides of cake.
Combine pecans and coconut, and press into sides of cake.
Spoon remaining 1 1/2 cups Cream Cheese Frosting into a decorating bag fitted with a star tip. Pipe a border around top and bottom edges of cake. Store in refrigerator, or freeze, if desired. Garnished, if desired.