NOTE:

If a car have no Aux input, we need External audio input module.

Processor Function: BENZ_W221_S TV Audio Input
1. Fiber optic audio decoder is designed according to the original car system protocol. It makes the analog sounds into digital audio signals, to solve the problem of external audio input. W221_S audio input channel applys the advanced system gateway technology design, replacing the original TV channel to switch between the original car and the aftermarket sound source.

2. To install BENZ_W221_S TV module, you must ensure that the original car with TV configuration, if the original car does not carry TV configuration, which the car screen interface does not have TV options, you need to activate the original car TV interface.

Installation

BATT connects to the original vehicle's normal power (+12V)
GND connects to ground wire (negative)

Unplug the fiber optic cable from the original TV module (if the original car with TV configuration), use the fiber optic shorting ring female connector to short the unplugged end, and then unplug the fiber optic cable from the original CD host end, access the triangular fiber optic cable female connector as shown in the picture, and then insert the male end of the triangular cable into the original CD host, and access the fiber optic decoder that is accessing the fiber optic network.