SauRoNZA
Honorary Master
Like xrapidx said, you can add a usb dongle to add a sim card to it.
I went another way. I have Tasker set up on my phone, with a rule, that as soon as it see my phone connect to the car's bluetooth, it enables hotspot which the car's radio automatically connect to and use. The car radio is set up to not do updates over hotspot wifi connections, so it only updates when at home and connected to the wifi at home.
Ha ha ha, this sounds almost like the iPhone their permanently lives in my old car that also needed a technological step up.
Lives in the cubby hole wired in and then I would sync music to it wirelessly when at home.
Should have just plakked it on the dash.