Compatible Models
Optical Fiber Decoder Most Box for Car stereo Auto Radio for Porsche boxster（2005-2012）for Porsche Cayman （2004-2012）for Porsche 911（2005-2012） Series and for Mercedes Benz GL（2005-2012） for Mercedes Benz GL R（2005-2012） for Mercedes Benz GL ML（2005-2012） Series Installation Procedure
Step 1: MOST BOX power wiring, please connect the yellow B+ wire to car B+/BATT wire，black GND wire to car GND wire，red ACC to car ACC wire
Step 2: For the white plug and red plug on the decoder, please simply connect them to the car radio .Red AUX-RIN to your car's FRONT OUT R, White AUX-LIN to your car's FRONT OUT L.

Easy to Install, Plug and Play
This fiber optic decoder box will retain your original car's fiber optic amplifier for Harmon Kardon system, or for work with a Bose sound system.
Optical interface decoders for Bose Harman Kardon reduce installation costs and easy to install.
Installed and ready to use, no need to wait.

Please Note：
If your applicable car comes with an amplifier system or factory navigation, a fiber optic decoder is required to pass through these amplifiers.
Some models require an additional fiber optic loop adapter, please check if your original car comes with the original car navigation, satellite box and CDC.

Customer Service
Response by e-mail within 24h.
2 year after sales quality assurance allows you to place an order with confidence.