Grilled Taco-Spiced Chicken

2 tablespoons of taco seasoning mix (I used half the package)
1 teaspoon dried oregano leaves
4 boneless skinless chicken breasts
1 tablespoon olive or vegetable oil
1/4 cup barbecue sauce
2 tablespoons chili sauce
1/2 teaspoon ground cumin

Heat gas or charcoal grill.  In shallow bowl, mix taco seasoning mix, and oregano. 
Brush chicken with oil; sprinkle with taco seasoning mixture.
Place chicken on grill over medium heat.  Cover grill; cook 10 to 15 minutes, turning
once, until juice of chicken is clear when center of thickest part is cut.
Meanwhile, in small microwavable bowl, mix barbeque sauce, chili sauce and cumin.
Cover, microwave on High 30 to 60 seconds, or until hot.  Serve sauce over chicken.