Hi Ash, thank you for that.....did I mention I'm a complete numb nut with electronics, the very mention of resistors, diodes, ohms etc etc brings down an impenetrable fog......I just don't get it....if it's mechanical though it's a different matter.
However, even a bear of very little brain sort of gets something right occasionally.......I do realise the power to the rear light is the brown lead, which on the GL1000 disappears into the guts of the machine but should be traceable.
I was hoping to locate that, interrupt it and link it to the newly switched headlamp circuit........or is that way too simplistic?
Best..........Mick.