Hi. I have a 2014 Audi A8 L and it doesn’t have a SIM card. I went to my Audi dealer and they said it is a 3G SIM card and that technology is obsolete and I can’t get updated maps. Can I use any 3G SIM card in my car? I found that there are still 3G SIM cards and service. I can get a prepaid SIM card from Amazon. Will it work and is it like a plug n play?