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Design 911 Design 911 supply Porsche parts, Porsche spares and Porsche accessories, to both retail and to the trade. Our Porsche product and accessory range includes brakes, exhausts, tyres, wheels and Porsche panels and interiors. https://www.design91.uk/images/schemaLogo.png https://www.design91.uk/images/schemaLogo.png +443456003478 https://www.design91.uk Facebook Instagram

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CT20PO02
Product Information
Product Information
Harness Factory Adapter To After Market Radio.

Fits:
Porsche 911 (996) 1998 Vehicles With 10 Speaker System Mini ISO
Porsche Boxster 986 1997 Vehicles With 10 Speaker System Mini ISO

Description:
This adapter is required when replacing your factory fitted radio with an aftermarket radio. It will convert the original vehicle power & speaker wiring connectors to a standard ISO connector. Simply plug one end of the adapter into your cars wiring harness and the other into your new radio.
* Note - New Radio Must Have RCA Audio Out Connectors.

Features & Benefits:
• Plug and play, no cutting of wires required
• Converts car specific power/speaker connector to a universal ISO connector
• Please check the connections in the vehicle match the harness you are purchasing
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About Harness Factory To After Market

Porsche Factory to Aftermarket Wiring Harnesses - Seamless Audio & Multimedia Upgrades

Porsche factory to aftermarket wiring harnesses provide a plug-and-play solution for connecting aftermarket head units, amplifiers, or multimedia systems to the original Porsche wiring loom. Designed to preserve factory wiring integrity, these harnesses enable clean, reversible upgrades without cutting or modifying original cables.

Available from Design911, factory-to-aftermarket harnesses are manufactured to OEM or approved standards, ensuring reliable signal transmission, correct pin configuration, and full system compatibility.

What Do Factory to Aftermarket Harnesses Do?

These harnesses act as the electrical bridge between factory systems and aftermarket components.

Core Functions:

  • Convert factory wiring connectors to aftermarket standards
  • Enable audio and multimedia system upgrades
  • Preserve original wiring loom and connectors
  • Support plug-and-play installation
  • Maintain system reliability and signal integrity

They are essential for safe, professional multimedia installations.

Why Do Wiring Harnesses Fail?

Although designed for durability, wiring harnesses can fail due to installation or environmental factors.

Common Causes of Failure:

  • Poor-quality connectors or internal wiring
  • Pin damage during installation or removal
  • Heat exposure behind dashboards
  • Vibration causing wire fatigue
  • Incorrect harness selection or mismatched pinouts

Failure may result in loss of audio, system errors, or intermittent functionality.

When Should a Factory to Aftermarket Harness Be Replaced?

Porsche factory-to-aftermarket wiring harnesses should be replaced when:

  • Audio or multimedia systems behave intermittently
  • Connectors become loose or damaged
  • Upgrading to a new aftermarket head unit or amplifier
  • Previous installation used incorrect or damaged wiring
  • Troubleshooting unexplained infotainment faults

Replacing a faulty harness ensures reliable connectivity and protects factory wiring.

Highlights

  • Plug-and-play Porsche multimedia wiring solutions
  • Preserves factory wiring and vehicle value
  • Supports clean aftermarket audio upgrades
  • Designed for reliable signal transmission
  • Ideal for installers and DIY upgrades

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