I have a 97 Silverado and when it becomes dark enough for the sentinel to turn on the headlights my blinkers go crazy. the front blinkers are fine but the back ones will light up the opposite way that I'm turning and the brake lights will flash with the blinker while my parking lights become my brake lights. also the blinkers will not turn on as long as I am pushing on the brakes. was wondering if anybody has had this happen and knows what's going on, is the twilight sentinel bad or do I have a short somewhere? thanks