You might be on to something there...
In my stock wired 67 dart...
If you press the brake with the flashers on and a turn signal on you can listen to the radio without a key. (It's been a while but IIRC that is the combo)
Some sort of back feed of power that Dodge knew about and mentions in that FSM
Its possible. Although '70 has a the column key switch. It may have a different hazzard to brake switch arrangement than earlier years. I'm pretty sure we can't pull that trick with our '67s.
