The technology is and has been there for years. Aftermarket is plentiful. GM won't do it, because they still want the income from OnStar. It's not about what the public wants, it's about getting more money from you. I love my 2020 Sierra, but if they don't get with cutting edge technology, they will be left behind. I would never buy another brand, if that were the case. I just switched from a lifetime of Ford trucks, and my 2007 F350 (aftermarket) dvd navigation system was wireless android. Such a disappointment to get in a 2020 and go so far backwards. Now they are preaching on 2021 models like they invented it.