I found this recipe when I was browsing through some cooking blogs. It was on http://saracoloradorecipespot.blogspot.com/ She said she found it on a different website/blog but I'm not sure which one. I'm saving it here to try it.
Place your chicken in the crock pot. Cover with brown sugar, pepper, garlic and soy sauce. Add the vinegar and soda.
Cover and cook on low for 6-8 hours. I cooked it for 6 hours and the chicken was a bit too done -- I think I'll cook it for closer to 5 hours on low--tops. It cooked up really quick. It will differ slightly also if the chicken is frozen or thawed. It was VERY yummy though! Just watch your chicken--you know your crock pot best too.