I have a problem with my flashers on my 67. They dont work! All other lights on the car work fine. I have replaced the flasher unit in the upper right corner of the fuse box and nothing. Could my problem be in the steering column? One thing i did notice is when the flasher button is pressed in my blinkers dont work. if i pull the button out the blinkers will work. Any idea's on where i should be looking and what to do??