D2B Fiber Optic decoder for Mercedes Benz SL R230 SL500, SL55 AMG, SL600 2001-2004 with Bose Sound System, support factory Bose Sound system.. It just converts RCA OUT audio to fiber optic signal to support factory sound system. The package come with four D2B Fiber Optic Bypass Loop ^^ Please note that you will need to refer to the QR code video in the package and use the bypass provided in the package to short the optical plug for the audio module under the armrest case and the optical plug for the CD Changer under the rear left seat ^^ The package includes installation instruction.
Please note that it is not plug and play. We recommend that it be installed by professionals. Because cars with different configurations in different years use different fiber optic devices. After removing the original radio, the fiber optic device will stop working. ^^ This audio decoder support factory D2B Bose sound system. It doesn't fit for Most sound system. Cars produced after 2004 are usually MOST sound systems ^^ If your car has multiple fiber optic devices, There are several ways to install ityou can use the long fiber optic cables to connect the D2B decoder to the factory BOSE sound system or use the fiber optic loop in the package to bypass the fiber optic equipment that stops working, such as CD changer audio model telephone model.
Otherwise, there will be no sound or there is no sound after working for 10 minutes