As soon as I attached power to my phone through either a USB plug in the console or through the cigarette lighter connection there would be horrible alternator whine in the system

I have a samsung galaxy s5 and get terrible whine/hum when using the aux port in my car

It gets rid the whine, but im my experience, it degrades my music quality

I've had annoying alternator whine in my Lexus IS250 when using AUX IN to stream audio

After installing this isolator, the whine was greatly reduced, but still audible in the background.

I've been using this for about 2 weeks now and have to say it completely suppressed all the interference/whining, without sacrificing any sound quality

So if you have a faint whining sound or maybe even heavy(depending on how loud you play your music i guess) then this does the trick.

After purchasing a Grffin iPhone mount for my car I immediately experienced terrible alternator whine

Before, I was getting an annoying whine in the background, this cut out the noise without affecting the sound quality.

Completely solved the humming / whining noise working great

The electrical whine wasn't impeding my ability to hear

IS 250 after getting tired of hearing the annoying whine while listening to my iPhone while driving

The TV audio works brilliantly, and the audio from the 2nd input works fine on my phone, but there was always an annoying whine when I plugged into my computer

There was an irritating whine in the audio that made his 'Droid patch unusable.

This device has completely eliminated annoying alternator whine for me

The whine was so bad we had to quit using the stereo completely

It works great and immediately eliminated a lot of the static, whining, and FM

It does what it is supposed to do - and that makes me very happy!I hated hearing that obnoxious whine when trying to play my music on the car stereo through my phone, while also charging the phone.

For any of you that have experienced alternator noise in your car radio, it is a horrible whine that increases or decreases in pitch related roughly to the speed you are going

My car (2003 Saab 9-3) causes a terrible whine to happen over the speakers if I use the Aux

used them to cancel out the stupid whine coming from my EXPENSIVE

No more whining noise

There MAY be a 10% loss in overall volume as well, but even so, it is more than a reasonable trade-off considering how annoying the whine was.

Completely removes irritating alternator whine

I would highly recommend this if you have whining noise in your car!.

Connecting a portable electronic device to your car's DC power and audio system AUX in can result in a terrible electronic whine that will make your audio un-listenable

If I had an iPhone charging and hooked up to the aux, there was an annoying whine/buzzing

I have a 2008 Mazda 3 and whenever I plug my phone into the Aux audio port while charging, there is that annoying whine that comes through the speakers that seems to overwhelm whatever I am listening to

While I've had the same issue as many where I get that annoying whine that rises/lowers in pitch with the vehicle RPM when playing audio through the AUX port and charging the audio player, this application was a bit different and worked perfectly.

After purchasing a Samsung Galaxy S4, I started to experience an annoying background whine and distortion when playing music via the Aux jack in my 2011 BMW.

HOWEVER, if I tried to charge my phone at the same time (via the "cigar lighter outlet"; with a USB cable) there was a very loud whine / buzz when the engine is running

And since day one it's had this horrible whining noise that changed with the RPM of the engine

Have to admit that I was skeptical, but this little box got rid of the annoying whine I was having with the Bluetooth audio adapter in my Toyota RAV4

The way it works is its circuitry isolates any ground loops in your stereo (depending upon how it was installed, you may have a bad ground and that can cause an annoying whine).HIGHLY recommended for anyone who wants to listen to their music and charge at the same time.

This thing was able to get rid of the nasty whining

I have a very loud, annoying whine coming from the auxiliary jack in my van

If you have a loud whine while charging your phone and listening

The whine would be so annoying at times that I would just turn it off.

No more of any type of static or engine whine.

I was getting terrible alternator whine on a bluetooth to aux device I was using in my car.

It did what it was meant to do - eliminate the nasty whining noise picked up by the Bluetooth receiver

With the isolator plugged in the sound quality of music playing from my phone seems about the same but the irritating whining noise is completely gone

Got rid of the annoying electrical whining noise I had when multiple devices were plugged into a cigarette lighter charger.

The wireless functionality of the receiver was pretty sweet, but the sound took a turn for the worse with unacceptable alternator whine

It got absolutely got rid of that annoying high pitched whine when used with my aftermarket bluetooth device and iPhone 5.

Installed a aux port to head unit using a plug, massive ground loop noise, plugged this in line, got rid of all the noise, I would recommend this to any one have whining noise when plugging into a aux port.

I had a loud whine using the aux input on my boats head unit

Solved the annoying whining noise you get when charging and playing music through the car stereo at the same time

This little device completely eliminated the quiet but annoyingly persistent whine I was hearing due to engine noise

I bought this after plugging in a bluetooth receiver in my car and being blasted with a painful whine and tons of engine noise from the speakers

The kit had a pretty bad hiss and whine at higher volumes

When playing and charging my I Pod at the same time I had horrible hissing and whining noise.

I didn't think this would work because after I read most of the reviews on this product, it seemed like almost everyone was having a "whining" noise issue either relating to acceleration or just simple humming or static

The whine is so loud I couldn't hear the music or books-on-tape.

I had this horrible whine that would get worse as the engine revved.

I have a 2008 Lexus IS250 and when I have my phone plugged in/music playing an awful whine sound would be present

Removed the whining noise and no noticeable loss of volume.

The problem here is I got the same annoying whine and in this case there was no avoiding it

Unfortunately, when my car is running and I have my iPod plugged in, I get a very obnoxious electronic whine (more noticeable during the summer at night, with the headlights on and the ac running...the more electrics running in your car, the louder the whine).

I used this to help clean up the alternator whine on my sat radio

I get that obnoxious engine whine when I accelerate.

Had that annoying whine through the external audio input in my RAV4 when my iPhone was connected and was powered by the car charger.

It works well, and i bought one for my car also, the whine isn't as bad but during the in-between song pauses its noticeable.

So anytime I had my cell phone powered through the cigarette lighter and playing music through the auxiliary port in my car I would get terrible whine and hissing noise.

I've listened to various types of music passing through this device and haven't noticed any sound issues, and it eliminates the annoying whine caused by using a device over my car's auxiliary-in jack while it's also plugged in to the power outlet

I had a very irritating whine in my aux-in of my car stereo, no matter if I was using bluetooth adapter or plugged directly in

solved whining sound like a charm

This works great for the scion tc whining noise issue.

Shipped and received very quickly and worked like a charm - annoying high pítched whining noise experienced with Bluetooth adaptor (Kinivo BTC450) was completely abated with this device!

Works great to get rid of annoying speaker whine when iphone or iPod is plugged into power jack

With every depression of my accelerator, an audible whine is transmitted through the aux port out through my speakers.

It did what I needed it to do perfectly, the whine is not audible at idle during silence between tracks, the whine is not audible at 60+ MPH during silence between tracks.2

I had a nasty high pitched whine from the PC to my Behringer 1204USB mixer

It did exactly what I needed it to do, which was eliminate whine and hiss when charging and playing audio at the same time.

I would recommend to get this if you are having the whining noise problem.

It works well, and i bought one for my car also, the whine isn't as bad but during the in-between song pauses its noticeable.

I HAD a VW rabbit with whining ground noise

I get a very loud whine that changes with engine RPM.

RPM.This thing did a flawless job solving that issue, no more whining!

Other wise I can't hear it during normal use, I highly recommend this product of you need an in line filter for your audio input while you are trying to charge the device.