855 with V70 tailgate.
 

Hello fellow enthousiasts,

Today i've replaced my rusted out 855 trunk and directly swapped it to a V70 classic one, but there is one problem.

My 3rd brake light doesn't work. As far of connector wise there are 2 wires coming out of the 3rd brakelight connecter
1. Grey/black 2. Black.

It seems like my 855 never came fitted with a 3rd brakelight since there is 1 "rigged" and terribly spliced into the left rear brake light wiring.

Is there someone that already had this problem and found a solution? And is it possible to wire it up like the previous owner "rigged" into it, but then make it better (read; Nicely soldered and heatshrinked.)