It's a funny old world 

.Mark changed his charging  wires for his Reg/Rec from,"Direct to the Battery,"too,"Through the Bike Loom",while I did the exact opposit (following a suggestion by one Mr.R.Negus Esq:)
 I didn't fit a "Charging Light" I fitted a Volt Metre,(much more info,like, exactly how many volts are getting to/from the battery)I will admit though,not quite as aesthetic as a nice neat little red window 

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Which made me think of way back in the past when Oil pressure lights were green,and went out at about 5psi,the engine needed about 25/30 psi,so if the light flickered on it was too late, your engine was s****d,so an oil pressure gauge was the way to go 

.rgds,J.B