Trailer coupling Volvo XC60U –> Order code 1028

Hello colleagues, I have a question about the “semielectric trailer coupling”, how to order it directly with the new purchase of an XC60 under order code 1028: Will this AHK be installed in the factory OR will the AHK – despite the order for the factory – be retrofitted before delivery at the dealer? If retrofitting is applicable: Does the dealer have to drill somewhere into the sheet metal or cut it into the plastic thruster?