Corsa-B.uk - Vauxhall, Opel and Holden Corsa B Owners Club

Me again, i know im a pain but would anyone know what guage wire i would need to install a cigarette lighter socket im my car? Done it 3 years ago and cant remember now

Thanks guys.

anything 18-26 will do, the stock stuff is very weedy so don't pannick about it catching fire lol