Then, I discovered a product called an $8.99 "Ground Loop Noise Isolator" here on Amazon.com.

No ground loop noise

but you really need to buy a ground loop isolating Filter to clean the sound up

Would have been 5 stars if loop ground isolator was included

I bought and added a "ground loop isolator" from Amazon (less than $10) and the sound was perfect then

If they had included the "Ground Loop Noise Isolator" with their product, I would give them 5 stars.

First off you need a ground loop isolator much more static without it.

This thing works really great......after I bought an additional "ground loop interrupt" filter.

The only crappy thing about this is that if you wind up having too much wire you'll get a ground feedback loop

This DID require a noise filter/ground loop isolator in one vehicle, but not the other, which I'm sure is more of a vehicle issue than a device issue.

This device does not isolate ground loop from the 12v port

Since I have a cassette player in my car and no AUX, I use a ground loop isolator (you can use female to female 3.5mm jack as a substitute) to connect a cassette adapter with this bluetooth receiver to enable bluetooth streaming in my car

Bought a noise loop Isolator just in case, but didn't need it!

In hind sight, I should have purchased a bluetooth kit that included a ground loop isolator.

All my calls and music are crystal clear because I got one of those ground fault loop interrupter devices for it

No ground loop isolator means alternator whine comes in through the 3.5mm jack

The only real downside is that my car has a "ground loop" and requires a ground loop filter, which can be found on Amazon, to get rid of the background noise

The only drawback is there is a high pitched whine caused by a ground loop

If anyone is reading this, I suggest just purchasing a ground loop isolator right away, that way you know you'll have good sound output

my only complain is that, i had to purchase a ground loop isolator to remove the electrical noise.

I updated my review to 3 stars once I purchased a Ground Loop Isolator it worked perfectly.

I know some have recommended getting a ground loop isolator so you don't get that whiney

I used the SoundBot in combination with a ground loop noise isolator (https://www.amazon.com/gp/product/B019393MV2/ref=oh_aui_detailpage_o01_s00?ie=UTF8&psc=1&tag=patrifletc-20) to get excellent sound quality even at low volume levels

I did have to purchase a ground loop noise isolator to get rid of the annoying humming when I would use it while charging it

I purchased the Ground Loop Noise Isolator as well to go with it

I did not see a lot of reviews here about this awful ground loop

I did buy a ground/loop on Amazon to stop a bit of the static that happened now and then, and now it is crystal clear

I also bought a ground loop noise isolator (just in case).

Lots of noise , used loop ground isolator and the soind became so flat and so bad quality (even the noises are gone)

While a ground loop isolator would help, it shouldn't be necessary as I haven't had the same issue with my other bluetooth car kit