Sorry I totally forgot about this and only just saw this morning
Well to start you need to remove the interior trim - meaning removing the interior light. Use a thin flat blade screw driver to pop off the cover, then there’s one Philips screw holding it in place - once removed unplug the 2 connectors and put it, the screw and the cover somewhere safe
Next you need to remove the interior plastic trim, now mines a manual roof and im used to removing civic interior - so where the black covers are for the roof to lock into, i gently prised the plastic away there and pulled it off
now in the above picture you can see I’ve removed the interior light wires, you can follow the wire and pop out the clips - you don’t need to but I did to show the location of the 3rd brake light plug:
Which is nicely taped up ready to go!
So that’s inside done, now we need to start outside, so i started by putting a big sheet over my boot - we don’t want any scratches do we
now use that flat blade from before to gently prise out the cover where the brake light is going, you will now have access to 2 big-ish black Philips screws - remove and place somewhere safe. now the outside trim needs to come off, it’s held by clips - one big one in the middle which you can just get to from reaching from inside the car (where the interior light goes) with a pair of pliers or other grips, once done use the flat blade along the top edge to again gently pop out the other clips and bingo!
Now if like mine - you probably want to give the area a wipe down as its filthy! i also found no hole to the 3rd brake light plug to enter the car (oooer misses
)
As you can see I’ve roughly marked up the area i wanted the plug to go thro - just to the left of the middle big clip hole.
So out with the drill
Feel brave and go for it!
If i remember correctly I used a 13mm drill bit (started smaller and centre punched the 2 holes i drilled to make the gap wide enough) and finished with a small flat file - constantly checking against the plug/grommet on the brake light to see how much I needed to take off untill:
Tadar it fitted!
Now you need to remove the above wire and refit your exterior panel 1st, which will clip back into place, then push your brake light plug into position and use the 2 big-ish black screws to hold the light in place, personally I didn’t yet fit the two clip in end covers over these screws just in case there was a problem with it working and I needed to remove it all (the clips are fragile and prone to breaking). You’re now done outside the car for the moment. Inside we still need to plug in the light; the plug should now be accessible from the interior light hole:
(note you can also see the big central clip I referred to earlier in the picture)
So if you removed the wiring to find the plug - or to wire in a new one, rethread the loom and re-clip in place, then plug your brake light in. If you had to wire your own plug - now is the time to test it! Turn your ignition to 1st position and put your foot on the brake, if you haven’t got a 2nd person to look for you - you should be able to see it light up your spoiler in the rear view mirror (well I could as mines white
) or get out the car, and use a long object to operate the brake while you look
Yay it works!
Any who it should work, so refit your interior plastic by popping back in the clips, refit your interior light - don’t loose the little screw! and remember to plug it back in
Now if your happy fit the 2 screw covers to the brake light and your all done!
Hope that helps
Rachel x