Anyone know how and where to access the third brake light wiring? I want to install a module to make the light flash and it is not obvious to me how to access it.
if you remove, if my memory serves me right, the five torx screws holding the center panel you will see the harnesses you need. this is the panel that house's the lamp.
actually there are eight screws. there should be six on the top, and two on the bottom; left and right corners. hope this helps. i took mine off and replaced it with the EXT light.