interesting, somebody from Venezuela
QUE MOLLEJA!!!
IS NOT REALLY necessary change to push button. key works just fine, BUT if you STILL wants to fit a push button, will need to feed the yellow and brown wires down the column on the START moment.
blue and black wires are cut on START moment on ign switch, but they can keep being feeded without a problem on START when using a push button.
take in mind if you use a push button, car could it be started on any moment and any thief will need just to know that to keep running the engine just need to feed the blue wire down the column or on engine bay ( could it be directly on ballast or even on coil ).
however you could try to hook the INPUT signal to push button to some key in signal to save from crank the engine without key, that could it be the same ign switch, taking power from black wire, what is accesories source. OR fuse box that normally provides an acc source enclosured on it!!! that is at least on B bodies and I don't think is diff on 70s A bodies ( I'm assuming you have a Dart GT from 70s decade )
