CTX-3304 | Optic Fiber decoder | Porsche Cayenne | Boxster | Cayman | 911

The CTX-3304 Optic Fiber Decoder makes it possible to connect an aftermarket Android car radio to the original Bose sound system in your Porsche in a neat and hassle-free way. Thanks to this decoder, which uses the original fiber optic (optical) connection, you do not have to pull cables through the car to the trunk.

This allows you to keep the original amplifier and speakers, while you can enjoy the most modern infotainment functions of an aftermarket car radio.

This optic fiber decoder is suitable for:

Porsche Boxster (2005 to 2011)
Porsche Cayman (2004 to 2011)
Porsche Cayenne (2003 to 2010)
Porsche 911 (2005 to 2011) 2011)

✅ Only suitable for vehicles with Bose audio via fiber optic (MOST system)

How does the car radio Fiber optic decoder work?

The CTX-3304 converts the digital audio signal that runs via the fiber optic from the amplifier to the speakers into a usable signal for an aftermarket radio. This means that the original speakers and amplifier remain fully active, but the audio source is replaced by your new car radio.

This way you can easily switch to Android, CarPlay or other modern systems without any adjustments to the original cabling.

Connecting & Installation

You can usually recognize the fiber optic connection by the orange cable behind the original factory radio. The CTX-3304 is placed behind the aftermarket radio and connected directly to the car radio and the orange fiber cable. No need to run cables to the amplifier in the trunk.

The installation is technically simple, but requires basic knowledge of automotive systems. The decoder is supplied with clear labels for the connection.

This product is only necessary in combination with Bose. Don't have an original premium audio system? Then the CTX-3304 is not necessary.

Frequently Asked Questions (FAQ)

Do all original speakers work with the CTX-3304?
Yes, all original speakers continue to work fully via the fiber optic (optical) channel.

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

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

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

Is the decoder suitable for every Porsche?
No, only for the mentioned models with Bose and MOST fiber optic system.

Can I connect any aftermarket car radio with this?
Yes, the CTX-3304 is suitable for all common aftermarket Android car radios with RCA audio output.

Important to know

This item is only necessary if your Porsche is equipped with an original Bose fiber optic audio system (MOST). Without this system, the decoder is not necessary and a standard connection simply works via speaker cables.