Most Mercedes-Benz/ Porsche come with factory fiber optics audio system. The audio signal is not the same as aftermarket head unit. In this case, there will be no audio at all after install the aftermarket navigation head unit. And you need this product.One end connects to the aftermarket head unit,..
Upgrade your Mercedes-Benz CL-W215/S-W220 with our latest aftermarket GPS navigation head unit, designed specifically to replace the factory standard radio or navigation system. With the same wiring harness and plug as the original radio. This unit features a touchscreen display, GPS ..