Rinse and cut pork into 1 1/2-inch cubes. Cut pepper into chunks, wipe mushrooms clean and mince garlic. In a deep dish, combine oil, garlic, oregano, wine and teriyaki sauce; add pork and vegetables; toss to coat. Cover with plastic wrap and refrigerate for at least 30 minutes. Alternately thread pork, mushrooms and pepper onto skewer(s). Discard marinade. Grill or broil; turn every 5 minutes until well done, about 15 minutes. Serve.