Door courtesy light switch

[therolfie]

Hi all, I have tracked my lack of interior lights down to the drivers door switch. I have a spare to fit, but would like some pictures of them fitted. Should there be just a small hole for the switch? Also how does the interior light on the drivers side get an earth? I have tracked this down as another issue, I can see a wire etc? If anyone has any top tips or pictures that would be great. Thanks

[Quart Meg Miles]

Could you tell us the variant, please, or chassis number.