Hi I bought one of these: https://www.amazon.co.uk/BSEED-Touch-Switch-Sensitive-Switches/dp/B075YPV6BG?ref_=ast_sto_dp&th=1 Probably should have checked some things before I bought but I have it now. This is the existing switch: IMG_20200122_160349132.jpg This diagram hopefully helps: IMG_202001...