Car Optical Fiber Decoder for Mercedes Benz W211 E Cls Slk Cl S Class

If there is no sound after installing the fiber optic box,Pls check it as following steps: 1. Confirm whether the power supply is connected well, measure with a multimeter, yellow --- battery power 12V, black --- ground wire, no need to connect ACC power supply2. Confirm whether the gateway signal is connected well, CAN-H, CAN-L3. In the optical fiber communication of the vehicle, all the optical fiber signals must be ableto communicate normally. Due to the damage of certain electrical equipment of the vehicle, the optical fiber communication is abnormal. At this time, it is necessary to short-circuit theoptical fiber signal of the damaged device, (common for example: 6-disc CD, telephonecommunication module, or directly install the optical fiber audio box to the original caramplifier)4. The W211 power amplifier is located on the left side of the original car's trunk, above theleft rear tire, and the W171 power amplifier is placed under the carpet in front of theoriginal car's co-driverProduct name:Optical Fiber Audio Decoding BoxWorking voltage:12VApplicable models:For BENZ E series W211 2005 2006 2007 2008For BENZ S series W220 2004 2005 2006For BENZ SL series W129 2005 2006 2007 2008For BENZ CLS series W219 2005 2006 2007 2008For BENZ CL series W215 2004 2005 2006For BENZ SLK series W171 2005 2006 2007 2008 without SD card slotInstallation location: Behind the car audio screen host, or car power amplifier.Function: Convert external RCA audio signal to optical fiber signal, and transmit to theoriginal car amplifier through optical fiber. The sound came from the sound of the originalcar.For example: Mercedes-Benz W211 Harman Carton audio, when you need toreplace the original car screen host, in order to retain the original car amplifier, you canchoose to install optical fiber Audio box.Special attention: when you connect the cable, If the sound is abnormal. Please note that thisphenomenon is not a problem with our fiber conversion module. This is the vehicle's fibercommunication system cannot communicate normally.Colour: blackMaterial: plasticPackage Contents:1 x Optical Fiber DecoderOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.