Car Optical Fiber Audio Decoding Conversion Box MOST for Mercedes-Benz W164

1. Module access voltage: 12V
2. Module power supply method: take power from the original car insurance. This product does not need to be connected to the ACC power supply, just connect the battery power supply and the ground wire
3. Easy to install, play and plug
4. Material: ABS
5. Fits for Mercedes-Benz W164
Suitable for the following models: ML/GL(W164), R(W251), SLK with SD card slot, Porsche Cayman, 911, Cayenne, Bobst, the above Mercedes-Benz series must be Harman Kardon audio, Porsche series must be BOSE Audio