My 67 caddy sedan deville has some serious electrical problems which most i have figured out. Two that are still baffling me have to do with lights. firstly anybody know if the front signal/park lights (in grille) are supposed to be lit when the head lights are on. They are lit when the head light switch is in the intermediate position (lights the park lights only) but when the headlight switch is all the way out (lighting the head lights) they go out. Secondly what kind of reverse light system do these cars have. the tail light lens have a clear section that one would normaly think would be for reverse lights, yet when removed there is no bulb or place for a bulb in this section of the tail light bezel. any help would be greatly appreciated.