Did a search and can't find the definitive answer. I am adding Plasma Rods to the back of my 2012 Street Glide. I am having to be very frugal (just bought it and don't want to throw too much money at it of wife is gonna get ANGRY )

Plus I like to tinker and solder my connections. On the 6 pin connector for the rear tail light, for just brakes is it Red for Positive, Black for Negative? I only want them as brake lights.

I tried to find a wiring diagram and sort it out from other peoples install pic, but no joy.

Thanks
Glenn

 

Without a wiring diagram a voltmeter will verify your question!

 

If you tap the red/yellow before the facia converter that should work for you.