Cambridgehank

I have finally connected my iPod Classic and/or iPod Touch in the center console of my 2018 E400. I have plugged them into the usb connectors and the Media setting finds and correctly identifies them. The problem is that I have 12,500 songs, 2,400 albums and 5,000 artist in the library. The dealer led me to believe I could use the Voice Control Button on the steering wheel to select a song, artist,album or playlist in the iPod library. When I select that button while in Media function, and speak a command nothing happens. The dealer has not been able to make this work. Any suggestions and help will be appreciated. I cannot believe that I have to scroll through an alphabetical list to find my music selection?