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Metra 40-HD11 Antenna Adapter

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

Item # 12040HD11

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Item # 12040HD11

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About the Metra 40-HD11 Antenna Adapter

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. 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 car stereo. Please check the stereo's manual for more information. Warranty: 60 days.

What's in the box:

  • Honda vehicle antenna adapter cable
MFR #40-HD11

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More details on the Metra 40-HD11 Antenna Adapter

Research Team

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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Customer Q&A

3 questions already asked

unable to locate the car antenna cable. no existing socket seems compatible to the adapter?
[ ?????  May 24, 2020 ]
1 answer
If you purchased the product from Crutchfield, feel free to contact our Tech Support team. Our toll-free Tech Support number is printed on your invoice, and is also available under the "My Orders" tab in the "My Account" section of our website. If you did not purchase the unit from Crutchfield, then you may want to contact the manufacturer.
[ KRISTINA  Jun 04, 2020 ]  Staff
Will this work with a 2012 Honda Civic Ex Coupe with premium sound and without navigation?
[ Marc  May 04, 2016 ]
1 answer
Thanks for your question. Yes for your vehicle listed without navigation that is the correct adapter.
[ KENNETH  May 04, 2016 ]  Staff
Where do I connect the blue wire?
[ Jonathan  May 09, 2015 ]
4 answers
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.
[ KRISTINA  May 10, 2015 ]  Staff

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