Think you will be disappointed if mib2, you need the 5 gHz band for that atleast. You will find it only radiates the 2.4ghz band to my knowledge (see below re Arona). You could play with Obdeleven in 5f look for the band and toggle on. My mib2high does not manage the higher band. Even if it does you need the software in it. Pretty sure the WiFi enabled mib2 ones didn't come to the Arona in any case. They came at the tail end of mib2 on Leons etc. If you see nothing about WiFi on the screens you have no chance. They were released to support Seat apps prior to the push into mib3 and connected services.
Good news is that the inbuilt sat nav chipset picks up three different satellite groups more than my 2016 mib2 high. US, Russian and Chinese
(suspect an Asian chipset). Why you get such a high number of satellites locked on with that unit. Probably doesn't
help if you dont want to use the built in sat nav.