I have installed front fog lights on my 2018 xc60 T8. Not really difficult had to loosen right front fender and make minor modification rubber around air duct and reinstall fender. Dealer worked with me ( supply parts and told me I would have to install new software ) for fog lights to work. Took car back to dealer after lights installed. After having the car for an hour came to me and said that their machine could NOT add the software for the fog lights because the VIN is linked to the original build.

 

T8s cannot have factory fog lights. They should know that.