I have the same set up on my 58 with the universal 7 wire column mount. Mine is wired per instructions except the red wire running from the brake switch. This wire I did not use because it was not clear where to interrupt the original brake wiring. Everything works on mine except the left turn .When I apply the brake the flasher stops .If I wiggle the turn signal arm it flashes. I returned the turn signal and they sent me another , it does the same. So does the red wire from the turn signal go with power feed before the stop light switch or after the stop switch?
