Filipino Style Chicken Marinated Skewers

3 pounds boneless chicken thighs 1/2 cup soy sauce 3/4 cup white vinegar 1/2 cup banana ketchup (sauce) or regular ketchup 1/4 cup calamansi juice or lime juice 1 entire head of minced garlic cloves 1/2 teaspoon salt 1/2 teaspoon black pepper 3/4 cup lemon lime soda such as 7-Up or Sprite add all ingredients together to make marinate marinate chicken overnight/minimum 1 hour pre-soak bamboo sticks in water for approximately 10 to 30 minutes before adding chicken to Marinade, reserved 1/4 cup for basting.