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Speaker Wiring Harnesses

For select 1998-up Mercedes, Porsche, and Volkswagen vehicles

Item # 12071051

These harnesses will allow you to plug your new speakers into the factory connectors present in the speaker...

Find what Fits your car

These harnesses will allow you to plug your new speakers into the factory connectors present in the speaker...

Item # 12071051

In stock

About the Speaker Wiring Harnesses

These harnesses will allow you to plug your new speakers into the factory connectors present in the speaker openings for your vehicle.

These harnesses will allow you to plug your new speakers into the factory connectors present in the speaker openings for your vehicle.

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 else crimp or solder the slide terminals included with the new speakers to the Crutchfield harness. Please enter your vehicle information or call a Sales Advisor at 1-888-955-6000 to find out if this model is compatible with your vehicle.

Includes Crutchfield's 60-Day Total Satisfaction Guarantee


What's in the box:

  • 2 Speaker harnesses
  • Instructions
MFR #71-051C

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Crutchfield response

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More details on the Speaker Wiring Harnesses

Pat M.

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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Customer Q&A

3 questions already asked

Would this fit a mercedes w203?
[ Janz  Nov 23, 2018 ]
1 answer
It's possible but we would need some more information as to the exact year make and model of the vehicle. Get in touch with one of our Product Advisors and we'll see what we have for you
[ Cosmo  Nov 28, 2018 ]  Staff
Do I need these if I'm going to run new speaker wire from aftermarket amp?
[ David  Oct 07, 2017 ]
3 answers
No you do not need it.
[ ANTON  Nov 23, 2020 ]
What year make and model component or just speakers all new wiring from amp to speakers or component system you will not need them as you will be putting new clip ends for wire to speakers
[ ANTONIO  Oct 14, 2017 ]
You will not need the speaker wiring harnesses when running new speaker wires, no.
[ Ryan  Oct 11, 2017 ]  Staff
Is this a Crutchfield made part? If not what is the part number? I would like to find some and am overseas.
[ Will  Sep 02, 2014 ]
1 answer
I forwarded your question to an Advisor and they responded with the following: This speaker harness is not "made" by Crutchfield, it is made by Metra. They no longer actually offer the part however, and don't have a current item/model number for the part. It looks like we have them, simply because we had a large stock and have not sold out of them over time. There's a good chance that we may be one of the only solutions for getting their hands on this piece. If you would like to discuss further you can contact an Advisor directly by phone (1-800-324-9695) or online chat.
[ Krissy  Sep 10, 2014 ]  Staff

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