Extract the downloaded archive (typically named something like Navteq_Connect_Europe_2020_NIT_G1_Alfa_FIXED.rar ). Copy the contents to the root of the SD card.
Before inserting into your car, check for a file named alfa_extras.poi . This file confirms that user-generated content (new dealerships, track days, etc.) has been merged.
Join the AlfaOwner forum today. Do not ask for links immediately. Instead, introduce yourself, share your map version number (found in Navigation > Info), and ask, "Does anyone have the latest user-added Navteq Connect file for a 2011 NIT G1 Europe?" The community is protective, but they will help a genuine enthusiast.