Optic Fibre Decorder for Cars that come with a factory amplifier when fitting an aftermarket radio

D e s c r i p t i o n it fits for the car with the optic fiber connector, such as mercedes benz c l s e s l k s l class w219 w211 w171 c l s (2005 2008), e w211(2003 2008), s l k(2005 2008), s l(2005 2008), s c l class, w220 s (2005 2006), c l(2005 2006) r e l a t e d p r o d u c t s