so ive got myself a spoiler with a brake light in but my 91 uk had a blank over the standerd one ,i want the light working anyone had to wire from scratch before ,and hows the best way to go about this

any help would be great

Yes - I have done it mate.....

 

......earthing the light to the inside of the boot lid is simple. For the live feed, just splice a wire into the live of one of the brake light wires, then run it inside the boot/wing trim and into the roof lining. From inside the boot, you'll see the cable trunking going from the roof section into the boot lid - run your new wire through that into the boot lid cavity, then down one side to the bottom and connect that to the live of your third brake light!

 

Sorry but I have no pics - it was on my old red ZX which has long since been sold.

 

Richard:rockon:

It's gonna be awkward but worth it. Getting a ground should bestraight forward/easy enough. Getting a positive feed from one of the rear lights is the tricky part. It inolves a lot of fishing. I recommend a straightened out wire coat hanger. Urr.... hard to explain the route but it's down one side of the bootlid, through the rubber sleeve, above the headlining (remove the roof and rubber seal if you got it), all the way down the pillar where the seatbelt is/should be, then towards the back along beside the rear seat and under the rear speaker and then all behind the boot plastics round to the rear light then just crimp it into the light feed for the normal brake lights.

You're basically gonna be spending a lot of the time fishing a wire behind all the interior trim peices. The route should become apparent as you work through it.

Hope this helps. It's the best I can do without pointing at stuff.

cheers lads my cars of to the body shop tomo for the fitting of the spoiler so will have a crack in a few weekends