Specific module for using the video source / TV tuner with the navigation system while driving Suitable for Mercedes Comand APS NTG 4.5: A-Class W176 B-Class W246 E-Class W212 CLS-Class W218 C-Class W204 M-Class W166 G-Class W463 SLK-Class R171 Activation and deactivation on the multifunction steering wheel Scope of delivery: Specific module Wiring Notes: When activated, you cannot use the navigation mode NTG 4.5 is equipped with an SD card input