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Metra 71-012C Speaker Wiring Adapters

Work with select 1990-up Honda and Acura models — connect new speakers to the factory wiring plugs

263 Reviews

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Item # 12071012

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These harnesses allow you to plug your new speakers into the factory connectors present in your vehicle's speaker openings. Warranty: 60 days.

Metra 71-012C Speaker Wiring Adapters

These harnesses allow you to plug your new speakers into the factory connectors present in your vehicle's speaker openings. Warranty: 60 days.

Note: Some aftermarket speakers have terminals that are wider than this harness's slide-on connectors. You may need to widen the harness's female slide-on connectors, or use the slide terminals that may be included with the speakers. If you need to connect your new speaker's connectors to the Crutchfield harness, soldering is best, and crimping is also very popular — see "Accessories."

Note: Most vehicles will require additional installation parts — please identify your vehicle if you haven’t done so. You can also call an Advisor for more information.

They fit. The extra cable length was remedied by tying them in a loop with original wiring.

Anonymous, Bellevue, NE

What's in the Box:

  • 2 Speaker harnesses
  • Instructions

Metra 71-012C Speaker Wiring Adapters Reviews

Average Customer Review(s):

(263 Reviews)
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Hands-on research

Product Research


Speaker Harness: These speaker harnesses prevent you from having to cut your vehicle's factory speaker plugs when replacing your factory speakers with aftermarket car speakers. The speaker harness features two female quick-slide connectors on one end to attach directly to your new aftermarket car speakers & a proprietary Molex connector on the other end that connects to your vehicle's factory speaker plug.

Quick-Slide Connectors: The speaker harness is equipped with a large (positive) & small (negative) female quick-slide terminal. These quick-slide terminals fit directly onto most aftermarket car stereo speaker terminals (slight crimping may be required). In rare cases that the quick-slide terminals do not fit your car speaker terminals, you will need to solder the speaker harness to your aftermarket speaker's terminals or replace the quick-slide connectors on the speaker harness with the correct size terminal.

Note: Installation tools, hardware, & accessories are not included & sold separately. Please see the Accessories tab for recommendations & availability.

Quick-Slide Terminal Measurements: The positive female quick-slide terminal measures 0.205" (inner width), while the negative female quick-slide terminal measures 0.115" (inner width).

Wire Code Chart: Two identical speaker harnesses are included.

Wire Color Function
White Positive
Black Negative

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Q & A

Customer Q&A

Crutchfield asked  
Why did you buy this?

to make it easier to connect speakers from my earlier purchase of car speakers for my car [ Peter  Feb 29, 2016 ]
Needed for installation of my new aftermarket speakers. [ Darran  Feb 23, 2016 ]
makes installation/adapts aftermarket speakers a breeze [ JOSE  Feb 22, 2016 ]
Fits my truck [ ANTHONY A  Feb 17, 2016 ]
Perfect fit [ Brian  Jan 25, 2016 ]