As universities create service-learning programs, educators are experimenting with pedagogical approaches that enhance learning outcomes while benefiting communities. We present a qualitative case study of a radio-based, service-learning program, grounded in a Freirean foundation and aimed at developing the cultural competence and sense of citizenship of undergraduate students while empowering working-class high school Latino/a students. Undergraduate students benefited the most from the program; they enhanced their cultural competence skills, awareness of social issues, and sense of civic responsibility. Latino/a high school students who stayed in the program for at least a year developed self-confidence, self-esteem, and a sense of self-efficacy.