now power front brake light switch 82 KZ1100

Hi, i picked up this bike and last thing I need net working is the brake light using front brake handle

The previous owner kept a big front fairing with radio etc . before giving me this bike.. with front light and turn signals in a Box.

- I don't not have power at the Blue/Brown wires at the Front Brake switch.
-I also don't have power at the front Right handle bar Harness connector. Blue/brown.
-Resistance checks out on the front brake switch.
-rear brake light works fine when using rear brake pedal/rear switch

The issue is probably in the Front light Housing..
I would need to know what provides power to the front Blue and Brown wires brake switch.

In the front light housing I have wires not used?
also I was able to get the turn signals working fine, they are just tempo connected for now until i get all this working. i attached a picture.
I suspect I have a wire not connected , or it bridges with the turn signals wires..

Any guidance would be great.
easy basic wiring Diagram.

I have volt/Ohm
meter.

Bike:
82 kz1100 d2
Gatineau, Qc Canada.

D1 wiring diagram is included among those provided in the following link:

Click here > www.kzrider.com/filebase/category/108-kz1100-electrical

Good Fortune!