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Item specifics
Product Description
For Mercedes benz W211 fiber box aux optical fiber decoder CLS S SL SLK CL 2005/2008 amplifier adptor for harman Kardon audioProduct name:Optical Fiber Audio Decoding BoxWorking voltage:12VApplicable models:BENZ E series W211 2005 2006 2007 2008 BENZ S series W220 2004 2005 2006 BENZ SL series W129 2005 2006 2007 2008 BENZ CLS series W219 2005 2006 2007 2008 BENZ CL series W215 2004 2005 2006 BENZ SLK series W171 2005 2006 2007 2008 without SD card slot NOTE: All above BENZ series cannot install BOSE speakers Note:If you are not sure whether the model is compatible, please send the picture of thecentral control host of the model to the customer service staffThe price of this product is free shipping, but not include the customs of your country.If you have any questions, please contact our customer service, thank you! !Wiring method:yellow-B+ battery positive, black-GND ground, red RCA-right audio input, white RCA-left audio input Installation 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. Application scenarios: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. Note that Mercedes-Benz BOSE audio is not suitableSpecial 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. 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, theoptical 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, so that the original car amplifier can communicate with the optical fiber audio boxnormally.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-driverMethod 1: It is necessary to short-circuit the optical fiber signal of the damaged device, (common For example: 6-disc CD, telephone communication module，then Use the fiber short-circuit ring After the installation of this module, if the sound is normal, no need fiber short-circuit ring , but our product packaging will contain 2 fiber short-circuit rings for backup 
Method 2: Directly install the optical fiber audio box to the original car amplifier, so that the original car amplifier can communicate with the optical fiber audio box normally. If the fiber box is working normally, please ignore it, and install it according to the normal installation method.
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