Hopefully soon: "Get the best sound – even without speakers"
 

Let's pray for an aftermarket solution from Continental :D

“When it comes to the infotainment of the future, great sound is part and parcel of an attractive mobility experience,” says Matschi. Thanks to a speaker-less sound system, Continental has reinvented car audio systems, drastically cutting down on weight and installation volume in the process. Compared with conventional high-end 3D sound audio systems, the speaker-free system requires 95% less volume. Equipped with actuators that cause specific surfaces in the vehicle to vibrate, the system works in a similar way to stringed instruments and provides a high-end audio experience for every vehicle class."

https://www.continental-corporation.com/en/press/press-releases/holistic-vehicle-connectivity-65414