So I recently fitted a brake light back onto my blaster as previous owner kicked it off and didn’t need it. Used a Lucas style 12v 2 filament bulb style no LED. Wired it up and I can either get a bright tail light (which should be brake light) and when brakes applied all lights go out. Or I can get just a working brake light no tail light... I was also wondering if anyone could tell me what all these are earths are going to the back of the bike to the rear light. Photo attached