2012 ultra limited fender swap with 2015 SG fender

[Zeus]

Hi Folks. I have a 2012 Ultra Limited. I bought and installed a 2015 SG rear fender. The 2015 fender light harness has 6 wires as does the 2012. Unfortunately they are different colors. Wondering if I can release the pins and use the 2012 connector  with the 2015 wires? If so, what color goes with which?

[Zeus]

Cold it be possible that they have different relays? Thought I was close, but I can't find a way for the tail lights to stay on while running. The brake lights work, blinkers and plate light. just no running lights.

[14GuineaPig]

Hope this helps