CTX-3307 Fiber Optic Decoder for Volkswagen Touareg 2011 to 2017

The CTX-3307 Optical Fiber Decoder allows you to connect an aftermarket Android car radio to the original Dynaudio sound system in your Volkswagen Touareg from the model years 2011 to 2017 in a clean and hassle-free manner. Thanks to this decoder, which utilizes the original fiber optic connection, you do not need to run cables through the car to the trunk.

This allows you to retain the original amplifier and speakers, while still being able to enjoy the modern infotainment features of an aftermarket car radio.

This fiber optic decoder is suitable for:

Volkswagen Touareg – 2011 to 2017

✅ Only suitable for vehicles with Dynaudio via fiber optics (MOST system)

How does the car radio Fiber Optic Decoder work?

The CTX-3307 converts the digital audio signal running from the amplifier to the speakers via the fiber optic cable into a usable signal for an aftermarket radio. As a result, the original speakers and amplifier remain fully active, but the audio source is replaced by your new car radio.

This allows you to switch to Android, CarPlay, or other modern systems without any modifications to the original wiring.

Connection & Installation

You can usually recognize the fiber optic connection by the orange cable behind the original factory radio. The CTX-3307 is placed behind the aftermarket radio and connected directly to the car radio and the orange fiber cable. There is no need to pull any cables to the amplifier in the trunk.

The installation is technically straightforward, but requires basic knowledge of automotive systems. The decoder comes with an installation manual so that you can perform the mounting correctly.

This product is only required in combination with Dynaudio. Do you not have an original premium audio system? Then the CTX-3307 is not necessary.

Frequently Asked Questions (FAQ)

Do all original speakers work with the CTX-3307?
Yes, all original speakers remain fully operational via the fiber optic channel.

Can I control each speaker individually?
No. Control is routed via one shared fiber optic channel. Individual speaker control per channel is not possible.

Is the original amplifier retained?
Yes, the original Dynaudio amplifier remains fully active.

Do I need to run cables to the trunk?
No, that is not necessary. The connection is made entirely behind the radio via the fiber optic connection.

Is the decoder suitable for every Volkswagen?
No, only for the aforementioned Touareg with Dynaudio and MOST fiber optic system.

Will my original CD changer still work after replacing the radio?
No. If you have an original factory-installed CD changer from Volkswagen, it will no longer function after replacing the original radio.

Can I continue to use the original radio antennas?
No, it is not possible to reconnect the original radio antennas to an aftermarket car radio. In that case, we recommend using free digital radio via CarPlay or Android Auto.

Can I connect any aftermarket car radio with this?
Yes, the CTX-3307 is suitable for all common aftermarket Android car radios with RCA audio output.