So I'm getting solid 12v to the green wire at the kick panel connector when I have the left signal switch position closed. Back at the brake light I have really weak voltage (wont light the lamp, wires may be compromised) and if I make a jumper straight from the green wire at the kick panel connector to a lamp it will light up but no flasher. Right side works fine. Car is a 67 barracuda FB. Any thoughts?