Hi, I’ve just bought a 2018 crossland x with no sat nav and was hoping someone on here can tell me if I bought a second hand unit if it will be an easy swap? Just plug it in and sort the security? 
many thanks Carl

Not so sure its that simple as you would need the external aerial and also the system would need to be coded to the vehicle on the CanBus.

Maybe a better option to buy a TomTom and also cheaper to update than Vauxhall system