Preheat the oven to 350F and grease a bundt pan very well with nonstick baking spray. 

In a medium bowl, stir together the pecans, warm caramel sauce, and salt. Pour the mixture into the bottom of the greased bundt pan.

In another bowl, add the cake mix, water, vegetable oil, and eggs. Mix with a hand mixer on medium speed for 2 minutes. Pour the cake mix over the pecans and spread it into an even layer. 

Bake the cake for 40 minutes, or until a toothpick inserted into the center of the cake comes out clean. 

Allow the cake to sit in the pan for 10 minutes. Then place your serving plate on top of the bundt pan and carefully flip it over. Tap the bundt pan a few times to release the cake, and then gently lift the bundt pan straight up. 

If any stray pecans are stuck to the pan, just use a spoon to place them back on top of the cake. Allow the cake to cool completely before slicing.