Adapters & Cables

Aerial Wire Adapter.

The Genuine Porsche Aerial Wire Adapter (Part Number: 99664257300) is an original equipment electrical connection component designed for selected Porsche 911 (996) and Boxster (986) models.

Fits:

• 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 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  

Cars With Option Codes:
441 - Prepared For Radio

Manufactured to Porsche's original equipment specifications, this aerial wire adapter forms part of the vehicle's radio and communication system, providing a compatible connection within the aerial wiring arrangement to support reliable radio signal transmission.

The adapter is designed to maintain the correct connection between compatible aerial wiring components and the vehicle's radio system. A secure connection is essential for effective radio reception, helping minimise signal loss, interference and interruptions during operation.

Over time, original aerial wiring connections can deteriorate due to ageing, corrosion, vibration, accidental damage or repeated removal of audio equipment. A damaged or poorly connected adapter may lead to weak radio reception, intermittent signal loss or complete failure to receive radio stations.

Replacing a faulty aerial wire adapter with a Genuine Porsche component helps restore the intended electrical connection, maintain dependable radio reception and preserve the original audio system configuration.

Ideal for radio repairs, Porsche Classic Communication Management installations, electrical system maintenance and classic Porsche restoration projects, this Genuine Porsche aerial wire adapter provides a practical replacement for compatible vehicles.

What This Product Does:
The aerial wire adapter is a connection component within the vehicle's radio antenna system.

Its primary function is to provide a compatible connection between sections of the aerial wiring arrangement, helping transmit radio frequency signals from the vehicle's antenna system to the radio receiver.

The vehicle's aerial collects broadcast radio signals, which are transmitted through the antenna wiring to the radio system. The adapter helps maintain the electrical continuity and connector compatibility required for this signal path.

Its main functions include:

• Connecting aerial wiring: Provides a connection between compatible sections of the radio antenna wiring system.
• Supporting radio reception: Helps maintain the signal path required for the radio to receive broadcast stations.
• Maintaining signal continuity: Reduces the risk of reception interruptions caused by poor or disconnected aerial connections.
• Supporting original radio equipment: Provides the intended connection arrangement for compatible Porsche audio systems.
• Reducing connection-related interference: A correctly fitted adapter helps minimise signal degradation caused by an insecure electrical connection.
• Facilitating radio servicing: Allows compatible aerial wiring to be connected correctly during audio system repairs or replacement.
• Preserving factory wiring: Helps retain the original antenna connection arrangement without unnecessary wiring modifications.
• Supporting audio system reliability: Maintains a dependable connection between the aerial circuit and the receiving equipment.

Symptoms Of Wear Or Failure:
The aerial wire adapter is generally a long-lasting electrical component. However, ageing, moisture exposure, vibration and repeated audio system removal can damage its connectors or internal signal path.

Common symptoms of a worn or damaged aerial wire adapter include:

• Poor radio reception: A damaged or loose adapter may weaken the signal reaching the radio receiver.
• Intermittent radio signal: Reception may cut in and out if the aerial connection is insecure or damaged.
• Increased radio interference: A poor connection may contribute to static, crackling or unwanted background noise during radio reception.
• Loss of radio stations: The radio may struggle to detect or retain stations that were previously received clearly.
• Weak reception in certain areas: A deteriorated connection can make the radio more sensitive to variations in broadcast signal strength.
• Complete loss of radio reception: A disconnected or internally damaged adapter may interrupt the aerial signal.
• Loose or damaged connectors: Physical wear or broken connector components may prevent a secure connection.
• Visible corrosion: Moisture exposure can cause corrosion on electrical contacts, affecting signal transmission.
• Damaged cable insulation: Cracked or deteriorated insulation around the connected wiring may indicate ageing or physical damage.
• Reception changes when wiring moves: A loose connection may cause intermittent reception when the wiring or radio unit is disturbed.
• Problems following radio replacement: Incorrectly connected or damaged aerial adapters may cause reception faults after audio equipment installation.

Why Replacement Matters:
Replacing a faulty aerial wire adapter is important for maintaining reliable radio reception and preserving the functionality of the vehicle's original audio system.

A damaged or poorly connected adapter can interrupt the radio frequency signal travelling from the aerial to the receiver, resulting in weak reception, increased interference or complete signal loss.

Although the adapter is a relatively small electrical component, its condition can directly affect the quality and reliability of radio reception.

Installing a Genuine Porsche replacement Aerial Wire Adapter helps to:

• Restore reliable radio reception: Reinstate the correct aerial wiring connection where the original adapter is defective.
• Reduce signal interruptions: Eliminate intermittent reception problems caused by loose or damaged connections.
• Improve radio signal quality: Help minimise static and interference associated with connection faults.
• Maintain electrical continuity: Restore the intended signal path within the aerial system.
• Support original audio equipment: Maintain compatibility with the specified Porsche radio wiring arrangement.
• Prevent unnecessary wiring modifications: Replace the damaged adapter rather than altering the factory aerial harness.
• Improve long-term reliability: Replace corroded or deteriorated connectors before further reception problems develop.
• Support audio system repairs: Provide a suitable replacement during radio servicing or compatible communication system installations.
• Preserve vehicle originality: Maintain the original Porsche electrical connection arrangement.
• Support classic Porsche restoration: Restore missing or damaged aerial wiring components during refurbishment.
• Maintain Genuine Porsche specifications: Use the original equipment replacement part for the applicable installation.

Replacing the aerial wire adapter is particularly recommended when radio reception faults have been traced to a damaged connector, loose aerial connection or interrupted signal path.

For older Porsche 996 and Boxster 986 vehicles, inspecting the complete aerial wiring system during audio repairs can help identify additional faults and prevent recurring reception problems.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

99664257300

The product you are viewing cross references to these numbers

Porsche Classic Radio multimedia interface USB / AUX / Mobile.

Fits:
Porsche 911 1965-89
Porsche 964 1989-94
Porsche 993 1995-98
Porsche 996 1998-05
Porsche 986 Boxster 1997-05
Porsche 924 1977-88
Porsche 928 1978-95
Porsche 944 1982-91
Porsche 968 1992-95
Porsche 914 1970-76


Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

99664551300

The product you are viewing cross references to these numbers