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Metra 40-HD11 Antenna Adapter

Works with select 2009-up Honda vehicles (Motorola male to OEM antenna female)

19 Reviews | 2 questions - 5 answers

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Item # 12040HD11

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This antenna adapter lets you connect an aftermarket car stereo to the factory antenna cable in select 2009-up Honda vehicles. The adapter has an OEM female plug on one end and a Motorola male plug on the other. The adapter cable also features a blue wire which connects to your aftermarket radio's power-antenna/turn-on lead. Warranty: 60 days.

straight forward to set up. Seems to work well signal wise.

Daniel, Mount Juliet, TN

What's in the Box:

  • Honda vehicle antenna adapter cable

Metra 40-HD11 Antenna Adapter Reviews

Average Customer Review(s):

(19 Reviews)
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Hands-on research

Product Research


Compatibility: This antenna adapter allows you to connect an aftermarket receiver to a Honda factory antenna lead. This adapter is for select 2009 and up Honda vehicles.

Installation Note: A blue wire is attached to the antenna adapter. When installing the adapter, the blue wire should be connected to the antenna turn-on lead of your new head unit.

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Q & A

Customer Q&A

Crutchfield asked  
Why did you buy this?

metra best brand [ Cap  May 11, 2017 ]
no wire cutting. [ JAMES  Mar 31, 2017 ]
Awesome equipment [ Robert Kurtis  Mar 22, 2017 ]
It was part of the suggested kit. [ Jason  Feb 22, 2017 ]
Best factory oem interface [ ROBERT  Feb 11, 2017 ]
PINs can be used to wire OEM Bluetooth Microphone. [ Hector  Jan 08, 2017 ]
It's free with the purchased of the DVD Receiver. [ Annel  Nov 28, 2016 ]
Made aftermarket install simpler! [ Guest  Nov 05, 2016 ]
Needed for install [ STEPHANIE L  Aug 15, 2016 ]
I have no idea. You say that I need it. [ Brent  Aug 14, 2016 ]
It fit perfectly! [ marissa  Jul 20, 2016 ]
make the radio compatible [ Brandon  Jul 19, 2016 ]
like to listen to the radio [ Ray  Jul 18, 2016 ]
I need it to fit my factory car antenna to my aftermarket radio [ Phil  Jul 16, 2016 ]
Based on forums this device will work with my auto. [ Jason  Jul 13, 2016 ]
it is needed and Crutchfield is giving it to me free [ VISESH  Jul 08, 2016 ]
Part of the install package for my Honda Civic. No brainer. [ COLIN M SHAWHAN  Jun 01, 2016 ]
It was part of the accessories package [ Luis  May 18, 2016 ]
needed for installation [ Michael  Jan 27, 2016 ]
To allow my upgrade to use factory wiring [ Scott  Dec 22, 2015 ]

2 questions already asked

Thanks for your question. Yes for your vehicle listed without navigation that is the correct adapter. [ Kenny  May 04, 2016 ]  Staff
blue wire connects to the aftermarkets radios' power antenna/ turn on lead. [ Charles  May 11, 2015 ]
Check the wiring harness for the main head unit- there should be a corresponding blue wire to power the antennae amplifier in the car. If not, this simply needs to be connected to a switched 12V out (e.g. the power amp 'on' wire). [ George  May 11, 2015 ]
It's for power, if you have a power extending antenna you would hook the blue wire to the power for the extension motor. [ Tommy  May 10, 2015 ]
For details on fit or installation please contact an Advisor by phone (1-800-324-9695) or online chat. They will be able to pull up your vehicle and give you the details on if this will fit and what you will need for an installation in your vehicle. [ Krissy  May 10, 2015 ]  Staff

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