Can Mercedes Benz C Class standard audio 20 be upgraded for command system?

Yes, the Mercedes-Benz C-Class equipped with the standard Audio 20 system can be upgraded to the COMAND system, but this typically involves replacing the head unit and possibly additional hardware. It may also require coding or programming to ensure compatibility with the vehicle's systems. It's best to consult with a Mercedes-Benz dealer or a qualified aftermarket specialist for specific options and installation processes.