is their ment to be a panell on the back of a standard aerox light cause my light never worked since i bought the bike. so i take of the front panell and it all works fine so i put it back on and nothing works so i put some tape over the back of the light covering all the spades and now it works fine and turned out to be the earth touching the radiator wich i thought wouldnt be a problem cause earths going to earth o-well seems okay at the moment (the radiators mounted right aswell usnless its a aftermarket rad)
There's usually a floppy rubber flappy thing like a mudflap on the back of the Aerox light unit, to keep out road crap.