Enter your VAT number here and click Verify:
Your details have been verified. VAT number registered to:
,
.
Your order will now be zero rated for VAT purposes. We reserve the right to verify these details after your order request has been made and reinstate VAT if required.
Your VAT details were not recognised or were invalid. Your VAT number must be matched to your Billing Country as specified above. This is currently specified as . You do not need to enter the country code part of your VAT number as this has already been selected in your billing address details above.
The VAT number checking service is currently offline. Please supply your VAT details within the comments or special instructions field below and we will apply a VAT discount after placing your order request.
- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster 986 2.7L 2003-04
- Porsche Boxster S 986 3.2L 2003-04
- Porsche Boxster 987 2.7L 2005 -08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
- Porsche 996 C2 3.6L 09/01-2005
- Porsche 996 C4 3.6L 09/01-2005
- Porsche 996 C4S 3.6L 09/01-2005
- Porsche 996 TURBO 2000-05
- Porsche 996 GT2 2001-05
- Porsche 996 GT3 MKI 1999-02
- Porsche 996 GT3 MKII 2003>>
- Porsche 996 GT3 RS 2003-04
- Porsche 997 MK1 Carrera 2 3.6L 2005-08
- Porsche 997 MK1 Carrera 2S 3.8L 2005-08
- Porsche 997 MK1 Carrera 4 3.6L 2005-08
- Porsche 997 MK1 Carrera 4S 3.8L 2005-08
- Porsche 997 MK1 TURBO 2007-09
- Porsche 997 MK1 GT3 2007-09
- Porsche 997 MK1 GT2 2007-09
- Porsche Cayman 2.7L 987C 2006-08
- Porsche Cayman S 3.4L 987C 2005-08
- Porsche 955 Cayenne 3.2L V6 2003-06
- Porsche 955 Cayenne S 4.5L V8 2003-06
- Porsche 955 Cayenne Turbo 4.5L 2003-06
- Porsche 955 Cayenne Turbo S 4.5L 2006>>
Vehicles with PCM 2.0/2.1. MOST ring requires activating if not already enabled.
Fits:
Porsche 911 (996/997)
Porsche 986 / 987 Boxster
Porsche 987 Cayman
Porsche 955 Cayenne
Features & Benefits:
• Plug and play, no cutting of wires required
• Allows connection of any audio device with 3.5mm headphone or RCA socket
• Please check the connections in the vehicle match the harness you are purchasing
For Installation Instructions CLICK HERE
Porsche Add-On AUX Interfaces - Simple Audio Input for Factory Multimedia Systems
Porsche Add-On AUX interfaces allow external audio devices—such as smartphones, MP3 players, or portable media sources—to connect directly to the factory infotainment system via a 3.5mm auxiliary input. Designed to retain the original head unit and interior appearance, AUX interfaces provide a straightforward, reliable solution for adding external audio playback to Porsche multimedia systems.
Available from Design911, Add-On AUX interfaces are ideal for restoring lost connectivity or upgrading older Porsche audio systems without replacing factory components.
What Do Porsche Add-On AUX Interfaces Do?
Add-On AUX interfaces enable analogue audio input through the factory sound system.
Core Functions:
- Connect external audio devices via AUX input
- Play music through factory speakers
- Retain OEM head unit and controls
- Provide a simple, plug-and-play audio solution
- Preserve factory interior appearance
They offer an easy way to expand audio functionality in vehicles without Bluetooth or USB support.
Why Do Add-On AUX Interfaces Fail?
AUX interfaces rely on wiring, connectors, and analogue signal paths that can degrade over time.
Common Causes of Failure:
- Worn or damaged AUX cables or connectors
- Internal wiring fatigue from vibration
- Oxidation or corrosion at connection points
- Compatibility issues with updated infotainment systems
- Damage during previous audio installations
Failure may result in crackling audio, intermittent sound, or complete loss of input.
When Should an Add-On AUX Interface Be Replaced?
- Porsche Add-On AUX interfaces should be replaced when:
- Audio signal becomes intermittent or distorted
- External devices are no longer recognised
- AUX input stops producing sound
- Upgrading to improved audio integration solutions
- Diagnosing unexplained sound input faults
Replacing a faulty interface restores clean, reliable external audio playback.
Highlights
- OEM-style Porsche audio input solutions
- Enables external audio playback via AUX
- Retains factory head unit and appearance
- Simple, reliable plug-and-play installation
- Ideal for audio system refresh or repair