Monserrat Radio with Warren Castle, This popular station serves over 70,000 listeners in the caribbean. The show host was introduced to Grant Cardone by his 14 year old son who is an entrepreneur and aspires towards greatness. After Warren Jr. called into the Cardone Zone, a rapport was formed and Grant appeared on Warren Castle Sr.’s radio show. Here is the first of several interviews they recorded on Grant’s popular books and Cardone University training.