With a fork pierce pork on all sides. In a large reclosable bag combine orange juice, cumin, garlic powder and black and red peppers. Add pork; seal, turning bag to coat meat well. Marinate at room temperature for 10 minutes, turning bag occasionally.

Preheat oven. Using a roasting pan put pork and cover with foil .Bake until tender, remove foil, add water if you need it.Cook until  pork browns. Slice pork into thin crosswise slices. In a small saucepan, bring any remaining marinade to a boil; add fruit,  serve with marinade, if desired.