I go by the rule, if it ain't broke, don't touch it. Plus, it's getting harder to justify putting in an aftermarket sound system as when you do so, you can't very well rip out the current center console as there's so much ev info and car configuration that can be done through the center console. Onstar, Bluetooth for streaming and phone, it's just too much to rip out so you can add a pioneer, blaupunkt, etc. to the car.