Metra 40-HD21 Aftermarket Antenna Cable Adapter 40-HD21 - Fits Honda Acura OEM Radio

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US$4.00
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Free shipping Free 30-day returns

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Product details

Management number 254666081 Release Date 2026/11/07 List Price US$4.00 Model Number 254666081
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This Honda antenna cable adapter connects an aftermarket antenna to a compatible factory radio, helping retain the original radio during antenna replacement or stereo upgrade projects. The adapter features a female Motorola connector with a blue wire lead on one end and a male Honda style connector on the other, creating an interface between the vehicle antenna connection and OEM radio head unit. This antenna adapter for car radio Honda applications can simplify installation when the antenna plug does not directly match the factory radio connection. It is useful for Honda antenna cable connector replacement, car audio installation, and select Honda or Acura antenna adapter cable applications. Compatibility varies by vehicle year, model, factory radio configuration, and aftermarket receiver, so verify the existing antenna connection before installation. Protect the cable and connectors from moisture, excessive heat, sharp bends, and pulling to help maintain a secure connection.

  • VEHICLE COMPATIBILITY - Fits select Honda and Acura vehicles from 2009 and up
  • RADIO ANTENNA CONNECTION - Connects a compatible aftermarket antenna to the vehicle radio
  • AFTERMARKET CABLE ADAPTER - Helps connect an aftermarket antenna cable to an OEM radio
  • AM FM RADIO USE - Supports compatible automotive AM FM antenna connections
  • INSTALLATION SUPPORT - Provides an antenna plug adapter for compatible radio installations
Manufacturer part number 40-HD21
Automotive electrical part & accessory type Adapters
Compatibility Honda/Acura 2009-Up
Vehicle fitment type Universal
Brand Metra
Vehicle make Honda
Vehicle model 40-HD21
Assembled product weight 1 lb
Rec. use Automotive
Color Multicolor
Count per pack 1
Vehicle type Car
Vehicle year 2009
Has written warranty No
Has nrtl listing certification N
Model 40-HD21

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