Saving the E-Call function in Mercedes S

Retaining the E-Call function Retaining the Mercedes Sprinter/V-class E-Call function. To connect the OEM microphone to the E-call system after replacing the OEM radio. Connector: 40 Pin Quadlock MQS Cars with E-Call System (E10/EY5 Only) Vehicle Application: *Mercedes Sprinter (W907/W910) ??2018-2021 *Mercedes Vito/Viano (W447) 2018-2021 *vehicles with Audio 10/15 OEM HU / Alpine OEM HU / Garmin OEM HU / Pioneer OEM HU *for vehicles from 2021 different connection is possible in OEM