Slow Cooker Carnitas Tacos - Frescados Tortillas

Ingredients

• 12 Frescados Taco Grande Flour Tortillas
• 1 tsp chili powder
• 1 tsp ancho chili powder
• 1 tsp ground cumin
• 1 tsp dried oregano
• 1 tsp brown sugar
• 1 tsp each salt and pepper
• 1 pork shoulder (about 3 lb)
• 1 onion, chopped
• 3 cloves garlic, minced
• 1 bottle (12 oz) beer
• 2 tbsp lime juice
• 3/4 cup prepared salsa
• 1 ripe avocado, halved, pitted, peeled and sliced
• 6 green onions, thinly sliced
• 6 radishes, thinly sliced
• Lime wedges, for serving