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Porsche > 991 (911) MK2 2016-2019 > 991.2 Turbo S Coupe 3.8L (580 Bhp) 2016-19 > Incar / Multimedia >

Adapters & Cables

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Auxiliary Audio Cable (3.5mm) - Head Unit to Glovebox Interface - for Porsche 981 Boxster/Cayman & 991-1 Carrera/Turbo/GT3 - 99164212301, 99164212302
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Auxiliary Audio Cable (3.5mm) - Head Unit to Glovebox Interface - for Porsche 981 Boxster/Cayman & 991-1 Carrera/Turbo/GT3
Special Order item
99164212302
Product Information
Product Information
Auxiliary audio cable (3.5mm) - connects the back of the head unit (PCM or CDR) to the glovebox panel, allowing you to link an external device to the car’s audio system via a standard 3.5mm AUX connection. 

Suitable for models equipped with either Porsche’s CDR infotainment system (option code 696) or PCM unit (option code 665).

Fits:
Porsche 981 Boxster 2012-16
Porsche 981 Boxster Spyder 2016
Porsche 981 Cayman 2014-16
Porsche 981 Cayman GT4 2016 

Porsche 991-1 Carrera 2012-16
Porsche 991-1 Turbo 2014-16
Porsche 991-1 GT3 / GT3 RS 2014-17

Diagram ref. 9. 

Related reference numbers
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99164212302
99164212301
99164212302

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About Adapters & Cables

Porsche In-Car Adapters & Cables - Reliable Connectivity for Audio & Multimedia Systems

Porsche in-car adapters and cables provide the essential physical connections between multimedia components, infotainment systems, and external devices. From audio interfaces and USB connections to camera, Bluetooth, and display cables, these components ensure stable signal transmission, clear audio quality, and full system functionality.

Available from Design911, Porsche adapters and cables are supplied to OEM or approved upgrade standards, making them ideal for repairs, replacements, and multimedia system upgrades.

What Do Porsche Adapters & Cables Do?

Adapters and cables form the backbone of the vehicle’s multimedia connectivity.

Core Functions:

  • Transmit audio, video, and data signals
  • Connect multimedia modules to factory head units
  • Enable integration of external devices and upgrades
  • Maintain signal stability and sound/image quality
  • Support OEM-style infotainment functionality

Reliable connections are essential for consistent in-car multimedia performance.

Why Do Adapters & Cables Fail?

Adapters and cables are exposed to heat, vibration, and regular handling.

Common Causes of Failure:

  • Internal wire fatigue from vibration or movement
  • Connector wear or bent pins
  • Heat damage behind dashboards and consoles
  • Poor-quality or ageing insulation
  • Damage during previous installations or upgrades

Failure can lead to intermittent audio, signal loss, or complete system malfunction.

When Should Adapters & Cables Be Replaced?

Porsche in-car adapters and cables should be replaced when:

  • Audio or video signal becomes intermittent
  • Devices fail to connect or are not recognised
  • Visible damage to connectors or insulation is present
  • Upgrading infotainment or multimedia systems
  • Troubleshooting unexplained multimedia faults

Replacing worn cables restores reliable connectivity and system performance.

Highlights

  • OEM-spec Porsche multimedia connection components
  • Supports audio, video, and data transmission
  • Essential for infotainment repairs and upgrades
  • Designed for durability and stable signal quality
  • Maintains factory-style integration       

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