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Metra 40-HD11 Antenna Adapter

Connect your factory antenna to a new aftermarket radio for select 2008-2025 vehicles from Honda, Acura

Metra
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• Antenna Adapter
• Connect the factory antenna cable to aftermarket radio
• Compatible with select 2008-2025 vehicles from Honda, Acura Vehicles

See compatible vehicles Learn more about the 40hd11
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List price $17.99
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$15.99

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Description


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Authorized dealer

Product Details:

Compatible Vehicles


Please use our Fitment Guide to determine specific compatibility for the submodel and audio features

The vehicle you have selected 2014 Ford Flex is not compatible. Change vehicle or See list of compatible similar products


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Item Details


Manufacturer:

Model Number:

40-HD11

Weight:

0.10lbs

Internal SKU:

40hd11

Internal Product ID:

124887

Customer Ratings & Reviews


Metra 40-HD11 Antenna Adapter thumbnail image

5 star
67%
4 star
0%
3 star
33%
2 star
0%
1 star
0%



Durability
5
Value
5
Features
5
Design
5
Usability
5

Customer Reviews

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Didnt fit

This was the incorrect antenna adaptor for my 2010 fit. Contacted Sonic and they sent out the new ome the next day at no charge. The metra 40-hd10 is the one i needed for my fit.

By Anonymous on August 20, 2018 Checkmark Icon Verified purchase

23 found this helpful


Great adapter

Easy install, nice fit. No issues or complaints about this piece

By Keith on December 1, 2022 Checkmark Icon Verified purchase

22 found this helpful


By Carlos on March 1, 2026 Checkmark Icon Verified purchase
2016 Honda Accord



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Modern vehicles often require specific brackets, wiring harnesses, and mounting solutions. A fit guide ensures:

  • You see only parts engineered for your exact vehicle
  • You avoid incompatible radios, speakers, or wiring
  • Installation is smoother, faster, and frustration-free
  • You get the correct accessories the first time

Whether you're replacing a factory stereo or upgrading your entire audio system, the Fit Finder eliminates uncertainty.