My 64' C-10 I just aquired has a couple empty spots on the dash bezel that I am wondering what is supposed to be there. First there are 2 black knobs on the left (light & wipers) & a hole to the right of them where it looks as if a knob has been removed. There is also a blank hole to the right if the ignition switch....am I missing parts & if so what might they be? Thanks