Optical Fiber Decoder Mercedes-Benz E / CLS / SLK / SL / CLK Series (2009-2012) For cars with fibre optic system   XTRONS FOBB03 Optical Fibre Decoder Box Xtrons FOBB03 specially for Mercedes-Benz E / CLS / SLK / SL / CLK Series (2009-2012) Decodes most bus-based systems. This adaptor is a plug-and-play adapter. It provides high-quality audio and video for your in-car entertainment. Fits for: To identify whether this optical fiber decoder box can decode your vehicles system information, please check your vehicle’s plug port.Mercedes-Benz E / CLS / SLK / SL / CLK Series (2009-2012)