Anecdotally, my 2023 Kia's infotainment unit is one big plastic box that I was able to access by just prying up some plastic and undoing a handful of screws.
I was applying some dielectric grease to the USB port used for Android Auto (in order to prevent intermittent disconnects while driving) but I wouldn't be surprised if one of the many other cables plugged into it led to a cell antenna on the exterior.
There are also software options; I was able to disable the "telematics" in the same vehicle by inputting a (frankly schizophrenic) combo of rolling back the date, touching random invisible trigger zones in menus, and entering a leaked PIN to access the appropriate service menu on the infotainment unit.
Figuring all that out was unfortunately quite difficult, although I imagine you might be able to get "official" help if your local dealership is friendly and willing to bend the rules. I had to settle for a lot of keyword massaging on Google.
I was applying some dielectric grease to the USB port used for Android Auto (in order to prevent intermittent disconnects while driving) but I wouldn't be surprised if one of the many other cables plugged into it led to a cell antenna on the exterior.
There are also software options; I was able to disable the "telematics" in the same vehicle by inputting a (frankly schizophrenic) combo of rolling back the date, touching random invisible trigger zones in menus, and entering a leaked PIN to access the appropriate service menu on the infotainment unit.
Figuring all that out was unfortunately quite difficult, although I imagine you might be able to get "official" help if your local dealership is friendly and willing to bend the rules. I had to settle for a lot of keyword massaging on Google.