Comand APS NTG1
The Mercedes Comand APS NTG1 is broken down into three separate components. The head unit in the dashboard with the screen, an Audio Gateway (AGW) module that contains the radio tuner, basic audio amplifier and MOST controller, and the navigation processor. These components are linked using a MOST (Media Orientated System Transport) fibre optic network. Because of this type of set up changing a radio is more complicated, a fibre optic interface is needed to integrate audio from a new radio with the fibre optic and the connection behind the radio is the 4pin connection (no Quadlock).