69 firebird coupe The tails lights turn on when i pull the light switch but they do not turn on when i hit the brakes. Neither the turn signals nor hazards work. I changed the 2 flashers, fuses and turn signal switch. I used a meter to check for current on the orange wire from the brake switch and it marks 13-14. I took a cable straight from the ignition to the orange cable on the brake switch and the ligts work like that, until i pull the knob for the lights. The left signal light on the dash is green sometimes. When the lights are on and i push the brake, only the left tail lights on. The only way i can get the tails lighs to ligt with the brake is connecting from the ingnition switch. i think its a ground issue. Where should i check for ground connections? I have no side marker bulbs; do i need the bulbs for stuff to work?
