This is the wiring loom you need to add the 3.5mm auxiliary input to the E and CLS (W211/W219 series) cars with COMAND (DVD based) systems.

You need to drill a 19mm hole in the glovebox. The lead then clips into the back of the COMAND.

Please note that on W211/W219 (before Model Year 2009) the COMAND (colour DVD navigation system) is the only system that supports Aux input.

Please also note that the picture for this product is wrong. The large white connector in the picture is in fact a small 3 way black connector for the NTG1 COMAND AUX input. The other end is the same.