I cannot get the knob to come out of my 64 cudas headlight switch. Yep, I know about the button, and have tried every possible combination , of button pushing, tugging, yanking , turning etc.etc, and the sucker will not come out. tempted to lop it off and just go find another switch and knob. am I missing something? PS, yes I have soaked it in penetrating fluid too neal zimmerman, eugene oregon