Place chicken and salsa in the slow cooker the night before you want to eat this chili. Season with garlic powder, cumin, chili powder, salt, and pepper. Cook 6 to 8 hours on Low setting.
About 3 to 4 hours before you want to eat, shred the chicken with 2 forks. Return the meat to the pot, and continue cooking.
Stir the corn and the pinto beans into the slow cooker. Simmer until ready to serve.
