I finally got around finding, purchasing and installing the illuminated cup holders on my 2014 Dart Aero. I'm not sure if I'm the only 2014 Dart with illuminated cup holders, but I would like to think so.

Sorry I didn't get install pics. The orange/white wire isn't in the instrument panel side of the connector, so I referenced the wiring diagram from the 2013. It appears that the same wire that illuminates the 12v power adaper supplies power to the cup holder in 2013. So I crimped a new terminal with both the original and a new wire and routed it over to the connector. I'm going to get the cloth wiring harness tape to hide the wire and make it look as oem as possible.
I also installed the extra power adapter into the center console, it was plug-n-play. Because all the wiring was already installed in the instrument panel side of the connector.
As an afterthought you could use the pink wire that illuminates the power adapter surround in the console for powering the cup holders. It would probably illuminate them more, because the light for the front power adapter only comes on with the headlights on; which is probably what the 2013 do as well.