Thaw fish if frozen. Place fish in shallow baking dish. Combine orange juice, soy sauce, parsley, oil, garlic and basil. Pour over fish. Let stand at room temperature for 2 hours, turning steaks occasionally. Drain, reserve marinade. Place fish in a well greased wire grill basket or cook directly on grill.
Grill over medium coals about 8-minutes or untill fish is light brown. Baste with marinade, then turn and grill an additional 8-10 minutes or until fish flakes easily when tested with a fork. Reheat remaining marinade to boiling. Transfer fish to serving platter and drizzle with marinade.