Hi guys so I just got an 06 sti this week the original owner had put on a wingless trunk for a bit but it now has the sti wing. I've been searching nasioc but couldn't find any info. My question is what harness hooks up the wing's 3rd brake light cause mine isn't working right now.

Is it just this one on the passenger side bar thing?



I found this blue harness that isn't hooked up to anything could that be it?
]

 

I have the same blue plug in my truck that is not connected to anything. My third brake light only connects like yours on the passenger side of the trunk. If you have it connected and the light is not turning on, check your fuses.

 

^^ check fuses. test light helps if you have one or can borrow one. my guess is that the blue one would be for 3rd brake light inside the cabin?