Customer Ratings & Reviews

Worked Great! in my 2008 STI

Buying these made installing my new door speakers so much cleaner and easier. It became total plug and play to install the new speakers. Definitely worth the money. I would definitely buy these again.

Works Great on 2004 Celica GTS.

Works Great on 2004 Celica GTS.

Worked well in a 2012 Toyota Tundra.

I used these in my 2012 Toyota Tundra. Worked perfectly and a good fit.

worked very good

These make changing speakers a breeze, very good product.

Also works for 2011 Subaru Forester

Great product for aftermarket speaker installation if you want to keep factory harness intact.

Mitsubishi eclipse spyder GS 2002 infinity sound system

Works great with my Mitsubishi eclipse spyder GS 2002 with infinity sound system (4 speakers + 1 dashboard speaker + 2 tweeters).
The Metra 72-8104 fits perfectly with the 4 main speakers (2 doors + 2 rear speakers).

useful

good for not having to splice speaker wires into aftermarket speaker...not totally necessary, but useful and time saving. fit well into factory connector. why not

Works Great for Mitsubishi Lancer 2003

These plug right into the Mitsubishi Lancer wires.
Works great!

Easy installation

I purchased these to make installing speakers in my 2012 Impreza easy and clean. They worked perfectly!

3 stars

for the money there great but a very cheap feel to them, one wire pulled out of the connector but not a big deal. they worked and worked good, just a cheap feel, but good for the money I suppose

Works on 2008 Subaru Impreza

Fits 08 Impreza factory speaker harness.

Fits Subaru

Worked in my 2011 Impreza!

Worked great

They fit my car and made install easier. No problems at all

parts fit great

Would buy these parts or similar part again. arrived in a timely matter.

great quality

these fit with no issues or concerns, great product quality!

A perfect fit

Professionally made to fit the factory wires without any guess work.

Wires had to be modified

the wire end that goes to the speakers were to small to fit on the connection on my RF speakers, also the wires were to short. I added longer wires and soldered them to the speakers.

Fit well

I used this to install aftermarket speakers using the OEM connectors and it's a very easy and quick installation. No splicing needed.

By Stephane on July 1, 2015 Verified purchase

Smart buy

A no-brainer if you're replacing factory speakers while still using stock wiring. No splicing needed. Happy customer!

By Anonymous on September 9, 2019 Verified purchase

Metra 72-8104

Plug in perfect, pre-butt connected if needed. Wires are long enough to route around anything in the way of your connections.

By Anonymous on December 15, 2018 Verified purchase

Great product

Makes everything easier to hook up with out cutting wires

It's a good buy

very good product, perfect connection in my vehicle. I recommend it.

By saul on March 1, 2018 Verified purchase

Great value

I would recommend this product cause it fit perfect and I will order something else in future

2015 Mitsubishi Mirage DE

These work perfectly for hooking up door speakers in a 2015 Mitsubishi Mirage without splicing wires.

By E on December 25, 2016 Verified purchase

Perfect

They worked perfect in 2008 Prius. Stupid simple to hook up and no cutting factory wiring.

By jeremy on July 9, 2020 Verified purchase

easy easy easy !!!!

Best buy for easy speaker connections makes everything simpler. No solder, no fumes, just plug and play...don't forget the heat shrink and you're all set.

By Moses on June 17, 2020 Verified purchase

Exceptional value

These speaker wire adapters are a must have. Saving the factory wire connection and soldering to replacement speaker wire terminals.

By Anonymous on April 12, 2019 Verified purchase

Fit great.

Worked perfectly on my '05 Subaru Legacy. Plugged right in.

By Joseph on February 2, 2020 Verified purchase

Metra 72-8104

Exactly what was needed to connect old speaker wire to new front door speakers in my 1999 Toyota Corolla.

By Anonymous on June 12, 2018 Verified purchase

Just perfect

Fast shipping excellent customer service good price.....just perfect 100% recommended

Great value and definitely worth it.

Plug and play, that's really all you can say. Great product.

By Daniel on April 26, 2020 Verified purchase

No issues

This came free with my order, I did not need it but it fits perfectly and works as advertised

Plug and Plan, super easy!

These adapters are great for the ease of installing new speakers. There is no guess work on polarity of wires, it just clicks into the factory speaker harness and the other ends to the terminals on your speakers. These are great for systems under 75w RMS a speaker, any more and you will want to run a heavier gauge wire anyways.

By Christopher on April 4, 2018 Verified purchase

Awesome product

I definitely love these for being able to reinstall factory speakers and keeping your nice ones when you get rid of a car so your not cutting and splicing wires and leaving a mess for someone else. Plus they make installing aftermarket speakers a breeze.

By Eric on April 28, 2020 Verified purchase

Did not fit for my car

This product did not fit my car, so I returned them

By JASON on April 30, 2022 Verified purchase

Does it’s job

What can I say? They do exactly what they’re supposed to do. I really liked that the speaker's connections came pre-crimped on. It saved me a ton of time on my install.

Work smarter, not harder!

These adapters make life so much easier! Why solder and fuss when you can plug and play!

By Frederick on September 23, 2020 Verified purchase

Great value

This Metra 72-8104 speaker quick connections are great, I used this on my 2015 Camry and it fit just right and you avoid cutting the vehicle's original wires. very satisfied, and at a great price and quality.

By alberto on June 15, 2020 Verified purchase

Fit the factory clip and aftermarket 6X9

Fits 2017 Camry SE without JBL system. Plug and play. No soldering or crimping needed.

By Richard A. on September 22, 2020 Verified purchase

Worked perfectly

I would recommend these to everyone. Made installation quick and easy.

By Jason on May 8, 2020 Verified purchase

Spades do not fit RF speakers, nor rear speaker connectors on 9th gen Corollas

TL;DR: If you're putting non-Rockford Fosgate 2-way 6.5s in the front doors of your 03-08 Corolla, these will work just fine. But don't buy them for your rear deck speakers or component speakers with external crossovers, otherwise they're a waste of money.

These were recommended by Sonic Electronix for my 2003 (9th gen) Corolla when I purchased new RF Punch 6.5 component and 6x9 speakers. They DO fit the OEM connectors for the front door speakers, but DO NOT fit the rear deck speaker connectors. The spade connectors present also DO NOT fit Rockford Fosgate speakers, or at least the Punch line of speakers, nor do they fit the external crossovers provided with the front component speakers. Both the negative and positive spades are too small. Additionally, the wires are far too short for those using an external crossover mounted inside the door itself.

I ended up using the wires supplied by RF for the front speakers as the length and spades in the Metra adapters were insufficient. However, the rear 6x9s did not come with any speaker wire. I didn't want to put my rear interior back together so I cut the plastic connector off the Metra adapters and pulled the negative spade connectors off of each and replaced them with ones I had on hand. I then used the positive Metra spade for the negative on the speakers and the larger female spades I had on hand for the positives. I then hardwired the cut ends into the factory harness with butt splices and heat shrink. So out of the four adapters I bought I only used two out of eight spades and four out of eight wires.

Additionally I wasn't very impressed with the spades on the Metra adapters. It did not take much effort at all to just pull the spade off and expose the bare wire. It would not survive the yank test I do when I install new connectors on wires. I can't imagine they'd come undone driving around or anything, but I like my wiring harnesses tight and secure nonetheless.

By Kurdt on April 28, 2023 Verified purchase

Perfect!!!

Great harness. Exactly what I needed. Great service and prices from Sonic Electronix.

By Kris on August 22, 2022 Verified purchase

Great

Works like a charm for my Toyota. Clean installation . looks factory

By Dwayne on October 24, 2020 Verified purchase

Time savers

They're a great product! Sonic needs to change them to they work with 2004-2009 Toyota Prius tho. They worked just fine in my Prius. So simple to use. Two butts connect or some solder and a quick plugin and you're done. So simple and useful.

By Bryan on March 10, 2020 Verified purchase

Works Like a Charm

These adapters simply work as they stated. Not much else to say.

By Trent on February 3, 2023 Verified purchase

Plug and Play

Plug and play made installing my new speakers a breeze. Super easy to attach ????

By Tami on March 24, 2023 Verified purchase

wire harness

seem well built and made my install a breeze.
thanks sonic electronix

By Jose on January 26, 2024 Verified purchase

Very handy wire pigtails

I purchased these wire pigtails adapters to install my Rockford Fosgate 6x9's in the rear deck of my 2016 Corolla S. They saved me alot of time, and simplified the installation.
I highly recommend these wire pigtails

By G on May 10, 2023 Verified purchase

Perfect fit

Used on a 22 WRX, for front and back door speakers installation. Fit perfectly. Small detail unnoticed was the speaker end leads were super tight. I had to gently open them up with a small flathead. Overall very satisfied with the clean and easy instal.

By Carlos on January 29, 2023 Verified purchase

Excellent and easy to install

I only ran into one issue with these. They are for the front door 6x9s on my 2007 toyota camry. I thought they were capable with my rear deck 6x9s as well but ended up cutting and using the original kit with the car.

By Japheth on April 4, 2024 Verified purchase

Sound Great

Still have stock radio, and they sound great. Installation was a bit rough, they did not line up with factory srew holes.

By Mark on May 4, 2025 Verified purchase

Wiring Harnesses were a perfect fit for my 2004 Toyota Avalon

The harnesses provided an easy and quick modification to add terminal connectors to the speaker connectors. Would recommend!

By David on August 23, 2024 Verified purchase

No issues

Direct plug and play makes installation super easy

By Sean on January 4, 2025 Verified purchase

Perfect fit

Worked perfectly in my 2007 Toyota Camry. Plug and play setup, easy to use and made the job a breeze.

By Javier on September 14, 2024 Verified purchase

instalation

The wiring harness is great I would not attempt to change speakers with out them

By leslie on April 30, 2026 Verified purchase

Great product

Made install very easy, no needless splicing

By Christopher on February 5, 2026 Verified purchase

Wire your speakers in no time.

These make wiring up a new set of speakers easy and quick. Great job Sonic.

By Mr. A on February 2, 2026 Verified purchase

Love these!

Don’t cheap out. Buy these metra adapters.

By Benjamin on December 28, 2025 Verified purchase