Installation of electrical and electronic devices (Mercedes-Benz S-Class W220)

Additional electrical or electronic devices that may influence the driver's control of the vehicle must be type approved and marked with the e symbol.

Permission is required to install telephones and radio stations in a vehicle!

Installation of telephones and radio stations with the following maximum transmitter power is permitted by the company "Mercedes-Benz", if it is performed by qualified personnel and a non-reflective outdoor antenna is used.

Note: Operation of electrical/electronic devices on the vehicle that have not been installed in accordance with the above installation conditions may result in the vehicle's operating permit being invalidated (eU Directive 95/54/EG).

Article text obtained from the website: mercedesman