I have 2019 Road glide. Purchased aftermarket tour pack. The tail light is LED. Purchased the adapter to wire tour pack. The adapter has 6 wires and to TP LED light has 5 wires. Was told by TP dealer center wire was ground on light. Have good signal when I test adapter. LED doesn’t work after wires connected together. Is there something I’m missing that converts this project to LED?

 

Just a guess but I do know if a led light is hooked up backwards they won't work.
Make sure the led positive wire is connected to positive and neg wire to ground.

WP

 

I figured it out. Used Namz wire harness. One of the 6 wires is for accessory. Just capped it. Hooked up all 5 wires at same time and lights lit up. Needed light tested to identify wires from bike. All good now.

 

Glad ya got it.

WP

 

I have very little electrical skills. Can provide a pic of how you wired yours. I am having the same problem.