Like most of the Indian bikes, there seams to be very little rear running light visability for night time riding and for providing additional visual rear-end safety. Unless you want to add a touring trunk to the Challenger, the options for adding more (Plug & Play) rear lights to the Challenger motorcycle are somewhat minimal. So about a month ago I placed an order for the Custom Dynamics 10" RED Plazma Rods and a 2014-2020 Indian Wiring Adapter for the Challenger. Shorty after placing the order I had recieved a message from Custom Dynamics that they were out of the wiring adapters and were wating on Indian to fabricate and send more. Yesterday, I had emailed Custom Dynamics regarding the status of the order previously mention and they said it would be shipping out in about one or two more weeks. I know you can connect the RED Plazma Rods directly to the electrical wiring but for simplicity reasons I'll just will wait and utilize the correct wiring adapter for this particular install. I'm surprised that Kuryakyn hasn't developed and released some type of plug and play rear fender lights for the Challenger already, like what they did for the Thunder Stroke models. I had a set of the Kuryakyn fender lights on my 16 Springfield and loved them, they looked great too and of course made a hugh difference in night time visability of the bike. Once I get the new Plazma Rods installed on the Challenger I'll post a few pictures for all who may be interested. Also, for anyone interested, the Custom Dynamics RED Plazma Rods and other veriation of light options can be found on their website in the Harley Davidson Motorcycle light options. The wiring adapter is in the Indain Motorcycle section.