Trim and discard excess fat from the pork.

In a small bowl, combine chili powder, cumin, oregano, salt and pepper. Generously season the pork on all sides.

Add the seasoned pork to the bottom of the slow cooker. Add garlic, chopped onions, orange juice, and lime juice.

Cover and cook on LOW for 7-8 hours or high for 4-5 hours.

Remove pork from the slow cooker, shred the meat. Taste and add more seasonings and salt and pepper, if needed.

At this point you can eat the pork as is, or for a more authentic taste, place the meat on a baking sheet and broil it for 2-3 minutes until the edges are crispy.

For tacos, serve warm inside warm corn tortillas topped with salsa or pico and cilantro. Serve with a side of Mexican rice and refried beans.