Fiber Decoder for Mercedes Radio: For Mercedes Benz ML (2005-2011), for Mercedes Benz GL (2005-2013), for Mercedes Benz R (2005-2018), for Mercedes Benz E(2009-2012), for Mercedes Benz CLS (2009-2012), for Mercedes Benz SLK(2009-2012), for Mercedes Benz S W211 (2005-2012) and for car models Optic Box for Porsche Stereo: For Porsche 911 (2004-2015), for Porsche Boxster(2004-2015), for Porsche Cayman 718 (2004-2015), for Porsche Cayenne (2004-2015), for Porsche 997 (2004-2015), For Porsche Macan (2004-2015), NOT for PCM 4.0 system. And for VW Touarey premium model (2011-2017) and for car models Easy to Install: Our Ponskoy optical most decoder includes JUST 1 cable and user manual for genuine plug-and-play installation. All cables just need to be connected in advance, DIY-friendly! for more details you can reference the installtion video Warm Tips: The car models with Bose or Harman Kardon system, needed an extra fiber optic loop adapter(ASIN: B0CKLFJLTH) even more. If your radio has no sound after installating please confirm your original car comes with the original car navigation, satellite box and CDC or not. One place needs one loop bypass Super aftersales: Our greatest pursuit is to satisfy the needs of consumers. Ponskoy sound convernter is backed by full 18-MONTH assurance and 100% satisfaction guarantee. Please note: for the Bose or for Harman Kardon system car owners, if you doesn't have the loop bypass, you need to purchase it separately
[Warm Tips]: Some car models need an extra fiber optic loop adapter even more. If it doesn't work after installating please confirm your original car comes with the original car navigation, satellite box and CDC or not.
Installation Steps: Please follow the below steps to install the optic fiber decoder to get sound.
Step 1: MOST BOX power wiring, please connect the black wire to your car's GND wire, yellow B+ wire to your car's B+/BATT wire, red ACC wire to yuor original car's ACC wire.
Step 2: For the white plug and the red plug on the decoder, please simply connect them to the car radio unit RCA cable's FRONT OUT L and REAR OUT R. (Red RIGHT IN to your car's FRONT OUT R, White LEFT IN to your car's FRONT OUT L).