For the stock set-up I believe you would have 2-wire sockets for the fron side lamps (parking lights) and turn signals. For the rear, one wire as those were only turn signals.
I have seen amber lenses used for the rear lamps -- possibly Euro-spec cars?
I changed my rear lamps to the 2-wire style so those inboard lights can be wired as both turn signals and brake lights -- giving me 4 brake light across the back. I went with LEDs in those for more flash and brightness.