Roasted Sweet Pork (another Cafe Rio Wanna be)

6 (approx) pounds Pork butt/shoulder
1 19 oz. can Red Enchilada Sauce
1 can Dr. Pepper (20 oz) annie says she uses root beer
2 tsp. Chili Powder
1 tsp. Cumin
1 tsp. salt
1 Clove Garlic or 1 tsp. Garlic Powder
1 1/2 c. Brown Sugar
1/2 onion, chopped
1/4 cup fresh cilantro, chopped

Combine all ingredients into your crockpot and cook on low overnight or until meat is tender.