Mix the cake mix together per package instructions. Pour half of the batter into a greased 9 x 13 baking pan and bake for 20 minutes at 350 degrees.
While this bakes, put unwrapped caramels, milk and butter into a small sauce pan and melt over low heat. It is very important to stir constantly until the caramel is melted and smooth.
When the cake is done, pour the caramel on top as soon as you take it out of the oven.
Sprinkle the chocolate chips and pecans onto the caramel. Spread the remaining cake batter on top and spread to the very edges of the pan. Try to cover all the caramel, chocolate chips and pecans.