I have a 68 mustang and have all but fixed one issue with the brake lights. When I brake the lights work fine. They also work when the headlights are on or off. Furthermore the turn signals right and left work until I brake, At that point the issues come along. My right blinker works while i am braking but when i use the left blinker while braking the whole taillight goes out. I am at wits end someone please help.