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Similar here, bought car in 2011 and will drive it till it dies. I’m happy with an 3.5mm port.
But for those that do feel like Bluetooth etc are must have features. You can buy head units, with touch screens and Android auto and Apple CarPlay for only a few hundred dollars, and often support connecting rear cameras etc.
You can also use
systemctl status $pid
to find out what service a process is from.