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Speaker Harness Adaptor (05-17 All)

Item 406021
AmericanMuscle no longer carries the Speaker Harness Adaptor (05-17 All).
Call a Mustang Enthusiast at 1-877-887-1105
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Features & Details

  • Adaptors for Ford Harness
  • Interfaces Aftermarket Speakers With the Stock Audio Harness
  • Eliminates the Need for Splicing and Soldering
  • Sturdy Plastic Female Speaker Connectors
  • Proprietary Molex Connector to Ford Harness
  • Plug and Play Design
  • Sold As a Pair For Use With 2 Speakers
  • Fits All 2005 to 2017 Ford Mustang Models

Plug In your New Speakers with Ease. Take the guesswork out of having to accommodate your new aftermarket speakers into your Mustang with the Metra Speaker Harness Adaptor. This speaker adaptor works as an interface between your new speakers and the factory Ford audio harness, negating the need for cumbersome splicing and soldering of your factory harness wires. This adaptor is compatible with a wide range of aftermarket speakers allowing you to choose the best sounding speakers for both your ears and your budget.

Quick Slide Terminal Connectors. The Metra Speaker Harness Adaptor features 2 quick slide female connectors made from sturdy plastic. These connectors are attached to the harness interface via 2 color-coded wires (white and black). On the interface end is a proprietary Molex connector that connects to the factory harness. Both slide easily into their respective connections. And since this adapter is compatible with just about any aftermarket speaker, upgrading to a new pair is made much easier.

Plug and Play Design. The Metra Speaker Harness Adaptor is super easy to use. The white wire on the speaker side connects to the positive terminal of the speaker, while the black wire connects to the negative terminal. Some crimping may be needed for a proper fit.

Application. The Metra Speaker Harness Adaptor fits all 2005 to 2017 Ford Mustang models.

Fitment: Details

CA Residents: WARNING: Cancer and Reproductive Harm -

What's in the Box
  • (2) Speaker Harness Adaptors
Installation Info

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        Customer Reviews (9) Write a Review

        Overall Rating 4

        out of 5 stars

        • 1/5

          August 15, 2019

          Waste of money. DO NOT FIT 2017 MUSTANG

          Bought these to install new speakers on 2017 mustang which it says fits but when I finally received the item they are no where close to fitting. Waste of my money.


          Year: 2017 Submodel: V6

          Helpful (0)

        • 5/5

          August 04, 2019


          Perfect fit. Easiest install ever. No issues. Another Great product offered by


          Year: 2010 Submodel: V6

          Helpful (0)

        • 4/5

          July 30, 2019

          Speaker Harness

          Good price! The harness works great in installing my JBLs.


          Year: 2007 Submodel: GT

          Helpful (0)

        • 5/5

          July 26, 2019

          Needed for aftermarket install

          If your looking for an easy plug and play for your speaker installation using factory wiring this adapter is a must for your aftermarket speakers. Plug and play deal and quality seems legit.


          Year: 2006 Submodel: V6

          Helpful (0)

        • 5/5

          July 03, 2019


          Easy to use for replacing stock speaker with new higher quality speakers


          Year: 2014 Submodel: V6

          Helpful (0)

        • 5/5

          June 21, 2019

          Super Easy Install

          You can install a set of speakers in 20 minutes. Takes all the cutting out! Just plug the factory and into your factory wiring harness and the other ends on your speaker and you’re set to go. I don’t think you need much more knowledge than being able to buy a pair of speakers and knowing how to put the door jam back on after you’ve taken it off. Is a great product and it was really super easy and helpful to put speakers in my car replacement upgrade.


          Year: 2014 Submodel: V6

          Helpful (0)

        • 5/5

          February 16, 2019


          This product made changing all four speakers a breeze.


          Year: 2014 Submodel: V6

          Helpful (1)

        • 1/5

          December 07, 2018


          NO this does not fit a 2017 S550 GT, website said YES this will fit. Not even close. Do not waste your money. Had to cut a solder wires. You can do that without these WRONG ADAPTERS!!!


          Year: 2017 Submodel: GT

          Helpful (10)

        • 5/5

          November 17, 2018

          Easy install

          Makes it easier to put in aftermarket speakers, cause we all know the factory ones just dont cut it.


          Year: 2009 Submodel: GT

          Helpful (9)