you mustnt have understood what i posted?
dark Green and dark Brown become live when the turn switch is operated (depending on which way it is switched)
so therefore you cannot ground out these colours or you will blow the fuse!
at the lamp wires...you need to find out which color wires are connected to the outer lampholder (not the centre connection),,,and consider all these to be black...wrap some black tape around them and connect to ground or spare black loom connectors