Krubinelectric

Not sure if there's any sort of post on here regarding this as I'm a new member here, but I have a 2016 Subaru legacy 2.5i premium, and my screen for my head unit is cracked. I was looking to replace it with a used stock head unit of the same part number, and have heard that I'll need to have the head unit reprogrammed at a dealer. Is this true? Or since I'm not messing with my starlink would it just be a plug and play replacement?