Customer Ratings & Reviews

350z rear location

Worked perfect

perfect fit

Made installing the after market speakers very easy and quick

By Douglas on April 14, 2015 Verified purchase

Perfect Adapter for Older Nissans

This little adapter salvaged my 1998 Nissan 240SX's decrepit sound system, because without it I could not have replaced my speakers. It was absolutely intuitive to install and took only seconds. I highly recommend it.

Metra 72-7400

These worked perfectly to get the Infinity Reverence series speakers connected to the factory wiring in my Maxima

Good Buy!

I ordered this on April 24th, got shipped on April 27th, received it on May 2nd.

My front speakers were stock and one was completely blown, I installed my Pioneer TS-G1642R's in my front doors with this product.

It's a VERY easy plug and play device. My system now sounds a lot better with these up front.

I [will] be ordering from Sonic Electronix again, very useful for car and home audio.

Great product well build saved me having to solder!

Used for my 96 nissan 200sx. Worked great and was easy to use.

Does not fit 07 + Altima's

These harnesses are incorrect for the 4th generation altimas. These probably work great for older models. But they do not fit my car.

Metra 72-7400

I order the Metra 72-7400 and i have to tell you its the best thing they came up with you just plug it in your factory wire and your your ready to hook up your new speaker if you ever putting in after market speaker you have to get some of these

Beats My Factory Speakers by Far - Lack Som Bass

These speakers are great and beat out the factory speakers that came with my car. Instantly I could hear a difference and so could my fiance who had no idea I switched out the speakers.

I replaced my mid speakers with the Polk Audio DB 652's and I could play my system at full volume and they did not become distorted or sound rattled. I noticed that compared to the stock speakers that they did not lose anything when turned up. I actually feel they performed better loud.

One thing I did find is that they lack a little bit of base. They are great with the highs but I need to balance out my system with a few other speakers that have some good mids.

I would recommend these speakers to anyone who are looking to replace their factory speakers or get something great to enhance what they are listening too.

Had these two door speakers for 4 years

Great product! Sound is rich and full. Would buy again

By Laura on July 11, 2020 Verified purchase

Sound amazing

I’m running 2 pair off of a hifonics 4 channel at 100x4 @ 4 ohms these things sound great

By Maurice on December 29, 2019 Verified purchase

Polk Audio DB652 DB+ 6.5-inch (DB 652)

A substantial upgrade to the sound quality in our RV compared to factory installed speakers. Easy to install with all parts included for installation.

Only Con is that the Polk speakers made deficiencies in the factory installed AV unit more obvious. I will be looking for a higher quality AV receiver with more power and additional capability.

Excellent speakers

My dad loves these. They produce a clear sound and can get quite loud. Great bass too.

Fits In front and rear doors of 2004 Volvo v70.

Great value and makes for easy install w/no cut wires

In my opinion this is the only way to go when connecting aftermarket speakers using factory wires. No cutting wires, no mistakes, etc.

Better than I expected

I've had these installed in the doors of my Scion FR-S for about 4 months now and they sound great. My doors are lined with Kilmat (Dynamat alternative) and it probably helps a lot with sound reproduction cause these things can definitely put out some bass for their size. These won't replace a sub or anything but they sure beat the factory speakers.

These are very bright sounding speakers out of the box. Good thing my head unit has an auto equalizing feature that uses a microphone to do time alignment and equalizing automatically. Now they sound great and aren't as bright as before. They're seeing about 100w rms to each speaker so a total of 200w rms and they are plenty loud.

All in all, they're great for the price and I'd definitely recommend these and buy them again for my other vehicles.

By Anonymous on December 28, 2018 Verified purchase

I received as described

Great quality product. Sound is clear and provides great quality sound.

Great sound, great value

Installation was easy, sound quality is exceptional and they handle power very well.

By Tom on April 25, 2018 Verified purchase

Works as said

I needed this for my tweeters in the dash. Does not fit the door speakers in a 06 Nissan x terra. Looks the same just too small for those who need to know.

By brian on November 15, 2015 Verified purchase

Wonderful sound

I just installed the speaker over the weekend, it is not a fair comparison of sound quality over the factory speaker. These speaker kick a**.
I can not wait for the weather to get better so I can drive my 350z with the new sound system cranked.

Polk DB652

i got these because i was tired of my factory speakers in my car and was told speakers were an easy upgrade, watched a few videos and had them in in about an hour, sounds so much better than before. these are really well built speakers, i was surprised how thin they are.

Good sounding speakers

I was looking for something with good sound for a low price... This is perfect for what I was looking for.

By Shawn on March 18, 2020 Verified purchase

Huge timesaver

Phew, I'm glad I found these. Be careful about which size you need. These actually fit my 2015 Infiniti Q50 with Bose, ONLY in the front doors. I had plenty of the other sized adapted, which fit all other locations. However, these were for the 3 1/2" speakers found in the front doors. Should work for ant quick connect speaker, and saved quite a bit of soldering, which would have been more than I expected because of the uniquely complex factory connections.

By Andrew on January 18, 2020 Verified purchase

To plug or unplug. that,,,, is the answer.

They worked great. This plugs made my job sooooo much easier. no messy black tape, no welding, no nothing. Just plug and play. and unplug if you want to.

Great value

I love this product, very easy to use and novice friendly , just plug and play your music away...
Very satisfy with this product.

Quality product

Fit perfect thank god oe connection so tight would be a nightmare without this solid connection and good fit def rec if doing door speakers on 350z

By clifford on April 26, 2020 Verified purchase

great convenience

this accessory made it a snap to connect the existing wires to my speaker. i am very glad i got them. i would recommend to anyone to get them when purchasing a compatible speaker.

Metra 72-7400

The product was spot on the right part couldn't find it anywhere except sonic electronix all pro's don't have any con's.and I would highly recommend this these parts and this web sight.(Mr.Black)

great speakers

the ease of installation was unsurpassed and the speakers sound great!

By Maureen on September 15, 2025 Verified purchase