Place pork in slow cooker and pour the lime and orange juice over top.
In a small mixing bowl, mix together remaining ingredients and rub over pork . Cover and cook on low heat for 7-8 hours or high for 4-5 hours.
Remove pork from the slow cooker and shred using 2 forks. Return meat to the pot and toss in the juices. Cover and let sit on warm for 30 mins.
If you want your pork with crispy ends... Preheat broiler and line a baking sheet with aluminum foil. Place the shredded meat on the baking sheet and pour a few spoonfuls of sauce over the top. Broil for 5 to 8 minutes, or until your pork has crispy edges. Be careful not to over cook and burn the pork.
Serve immediately with your favorite toppings in taco's, lettuce cups, salads or halved peppers.