I have been looking everywhere to figure out how to install my after market running lights with on/off switch on 2014 FLHTK. These lights will be install on the sdie crash bar. I do have the factory installed lights on the bike. Just want to add some extra visibility. I bought an accessory switch from Harley dealer. The 2014 FLHTK has pre-wired dash switch assembly in the dash. I have the service manual and looked through the electrical prints but can't figure out where to add the switch to control the lights. Does anyone has a clue as what to do? I called the dealer and they were no help. One thing he told me was that I do not need any flash to BCM.

 

I know on the right side of the dash panel there a aux plug i tapped into that for my homelink. If you loosen the torq screws and look up under where the the right switches would be you can see the plug .I also believe Harley sells an adapter that plugs into and has wire ends on it to make installs easier. I just tapped into it .

 

This may be helpful, if you have the service manual you should be able to follow along the schematic as you read thru this.
Let me know.....
https://www.hdforums.com/forum/12280183-post19.html