I have manual wing mirrors on my EG and I've bought a donor EG which has electric wing mirrors. I want to fit the electric wing mirrors onto my EG but I don't understand the wiring. I followed the green plug for the electric mirror switch and it seems it is part of the whole interior loom. I know I could swap the whole interior loom but it is too much hassle.

Is there an easy way to retro fit electric wing mirrors? I will also be swapping over the doors so I will already have the plug/loom for electric wing mirrors but I'm worried whether I will have have to de pin or add wires to door jamb connector that goes to kick panel because as stated I have manual wing mirrors and I'm not sure if the wires for electric mirrors are under my dash?