Wipers again

[blue]

Guys sorry to rehash this old topic again but hopefully this is an easy question for someone to answer 

I have Sierra stalks ( the ones with the round hazard switch) 

and 4 wires coming from the plug to basic nothing as they have been cut by previous owner now none of the wires has any power.   Red.    Green.    White/brown.  And a black   And on top of the plug a spade terminal that’s live with the ign on but still no power to wires so can someone pls tell me where the power should come from i`e is it a jumper wire from the headlight plug although looking at it there is not nor have been any other wires from the plug. 
‘I’ve done a search and I know what wires go where on the mini motor etc but just baffled on where the power comes from in the wiper switch

[maca]

Depending what switches you have mine are as below:-