Brindles

Sorry to bother you all, we bought a 2013 GU713 and want to repace the radio. We wanted to put in a XDVD256BT which had the capacity for the backup camera. Problem is the Mack wires are all red and black while the tails on the radio are a rainbow. I read something on here about cutting one tail off the old radio and putting it on the new, but apparently those wires color coded. Ours don't. Suggestions would be great Thanks