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  • Kensington Noise Reducing Car Audio AUX Cable for MP3 or SmartPhone, including iPhone 4S
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Kensington Noise Reducing Car Audio AUX Cable for MP3 or SmartPhone, including iPhone 4S

459 customer reviews
| 6 answered questions

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We don't know when or if this item will be back in stock.
  • Reduces hum from your car's electrical system
  • Provides a direct connection to your car's AUX (auxiliary) port for pure sound
  • Cable braiding for strength, durability and limited tangle
  • 4-ft long, 3.5mm audio cable
See more product details

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Product Description

Product Description

Cleaner sound through your car stereo. The only humming inside your car will be yours thanks to the Kensington Noise-Reducing AUX Audio Cable. The direct AUX (auxiliary) connection and noise reducing technology combine to deliver clear, clean sound through your car’s stereo.

Amazon.com

Have you tried using a phone connecting cable in your car for your MP3 player or SmartPhone and been bothered by a "hum" that accompanies the sound?  The best way to avoid that bothersome humming is to connect directly into your car's AUX port so you get pure sound without interference from the car's electrical system.  The Kensington Noise Reducing Car Audio AUX Cable lets you do that easily and efficiently.

The direct AUX connection and noise reducing technology of the Kensington AUX Audio Cable combine to deliver clear, clean sound through your car's stereo.  The 4 foot long, 3.5mm audio cable is braided for long term durability and to keep it from tangling.  The cable plugs into your car's AUX port and into the headphone jack of your portable device.  And you're in business.  The only humming you'll hear will be your own!

Note: Your car must be equipped with an auxiliary port (most newer models are) and your device must come with a 3.5 mm headset jack.

Features

  • Reduces hum from your car's electrical system
  • Provides a direct connection to your car's AUX (auxiliary) port for pure sound
  • Cable braiding for strength, durability and limited tangle
  • 4-ft long, 3.5mm audio cable

Learn more about our other iPhone mounts and cradles in our Cross Reference Guide

iPhone Mount Cross Reference Guide
Mounts & Cradles

K66624US

Kensington K66624US

Dash/Friction Mount with Sound Amplified Cradle for iPhone

K39210US

Kensington K39210US

Windshield/Vent Car Mount with Quick Release Cradle for iPhone and iPod touch

K39207US

Kensington K39207US

Power and Mounting Kit for iPhone

K66627US

Kensington K66627US

Windshield/Vent Car Mount with Sound Amplified Cradle for iPhone

Sound Amplification Yes No Yes Yes
Mount Style Dash Mount Windshield and Vent Windshield and Vent Windshield and Vent
Charging No No Yes No
Works with a Case Yes Yes Yes Yes
Compatibility iPhone Only iPhone and iPod touch iPhone Only iPhone Only

Smart Accessories for Smart Professionals
Secure your mobile device while driving and keep your devices within reach no matter what car you have. The adjustable side clamps securely hold your device (even with a case), and the Mount also easily rotates from vertical to horizontal modes.

Smartphone/Cell Phone Mount Cross Reference Guide
Mounts

K66624US

Kensington K33412US

Car Mount for iPod® and MP3 Players

K39210US

Kensington K33446US

Dash Mount for iPhone and iPod

K33447US

Kensington K33447US

Power Port Mount
for iPhone and iPod

Mount Style Windshield Dash Cigarette Lighter /
12V Power Port
Power No No Yes
Works with a Case Yes Yes Yes
Compatibility Kensington Universal Mounts are compatible with leading
Smartphones, MP3, GPS, or PDA players

Product Information

Technical Details
Brand NameKensington
Item Weight3.2 ounces
Product Dimensions2.8 x 5.2 x 1.8 inches
Item model numberK39203US
Operating SystemN/A
Number of Items1
  
Additional Information
ASINB0031U1ATQ
Best Sellers Rank #83,923 in Cell Phones & Accessories (See top 100)
Shipping Weight4 ounces
Domestic Shipping Item can be shipped within U.S.
International Shipping This item is not eligible for international shipping. Learn More
Date First AvailableJanuary 6, 2009
  
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Customer Questions & Answers

Customer Reviews

Most Helpful Customer Reviews

53 of 55 people found the following review helpful By Tony Nguyen on February 23, 2011
Package Type: Standard Packaging Verified Purchase
My 2007 Toyota Camry Hybrid had terrible problem with ground loop noise. It was unbearable that when I play music through the Aux jack while having the charger plugged in (any devices). There were "weeeezing" noises that drowned the music. I had to unplug my devices from the charger if I wanted to listen to clear music. This Kensington Noise Reducing device works wonder. 100% of the noise was gone. I hear no trace of ground loop noise playing music while charging my devices! The length of the cable is plenty for me. Well worth the money!
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19 of 21 people found the following review helpful By Jim on August 10, 2013
Package Type: Standard Packaging Verified Purchase
Sounds awful - huge loss of high frequencies. Rather than return it, for $15 I figured I'd just cut it apart (see picture in Amazon gallery for the product), pull out the guts, and put a proper filter in it (I'm an electrical engineer, so I'm lucky I can do that). Cheap low-quality transformers in it, so I'm not surprised it sounds so bad. Yes, it got rid of the high-frequency squeal that happened when I plugged my new Galaxy S4 phone into my BMW's Aux port using a regular cable, but the significant loss of fidelity is not worth it.
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16 of 18 people found the following review helpful By Amazon Customer on July 15, 2010
Package Type: Standard Packaging Verified Purchase
Does what it claims, if you hear hissing or feedback when running your iPod (or, I presume, any other audio device) through your aux jack this should clear it up. In my case I use a Kensington LiquidAux running into a cassette adapter (my car predates aux jacks). I listen mainly to audiobooks and had an issue with clipping and distortion of the spoken high frequencies. Once I installed this between the cassette adapter and the LiquidAux, the problem disappeared. I also like the braided cord better than the usual plastic/vinyl cord you see, it feels sturdier.

The only thing I would change is the length of the cord. I chose this device over the competing product by Griffin because the cord was 2' shorter - and even the 4' cord of this device is overkill for my setup. I have about 3' of extra cord coiled up inside my console. Of course depending on your situation maybe you need the extra cord, but I didn't. The other thing to remember is that you will likely need at least one 1/8" adapter (I needed 2, because of the cassette adapter) in order to plug this device into a LiquidAux or similar system. If you don't buy the adapters here, try Radio Shack.
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51 of 69 people found the following review helpful By Martin Blaine on February 17, 2011
Package Type: Standard Packaging Verified Purchase
I purchased this product in August because I got sick of the humming from my stereo when I was charging my iPhone 4. This cord ABSOLUTELY eliminated ANY and ALL noise created by my car stereo. BUT, the plug had been coming loose from the cord on the smaller end of the cord for the last week or two, but I hadn't much noticed it. Well, the cord stopped working yesterday. Overall, I really wish I had kept shopping for a different product because this product just isn't very durable.

UPDATE (2/18/11): On a lark I contacted Kensington Customer Support and they are sending me a new cord to replace the defective unit that I purchased previously.
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4 of 4 people found the following review helpful By withspirit on August 23, 2013
Package Type: Standard Packaging Verified Purchase
I bought this cable to eliminate the whine heard on my portable XM receiver and my iPhone 4S. The product worked great on my XM receiver, but reduced the iPhone volume by 60%. When I increased the volume on my car radio to compensate, the whine returned.
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2 of 2 people found the following review helpful By John Murdoch on October 29, 2013
Package Type: Standard Packaging Verified Purchase
I have been trying to resolve an annoying hum in my church P.A. system, and bought the Kensington Noise Reducing Car Audio AUX cable more or less out of desperation.

Executive summary: it worked--the annoying hum is gone.

The details: the "car audio AUX cable" is really a balanced audio cable with a 1/8" TRS (tip/ring/sleeve) male connector on either end--and a plastic package in the middle with a ferrite choke and a low-frequency filter. The effects of the choke and the LF filter eliminate the annoying buzz/hum kind of noise that makes car audio annoying--and that pops up in lots of other applications as well. In my case, recording spoken audio (scripture readings and the sermon) was pointless, because the noise on the recording was too annoying. This product solved the problem entirely, without affecting the sound quality of the recording.

If you have a persistent buzz/hum kind of sound in a recording, give this a try; whether you have a car audio issue, or pro recording.
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1 of 1 people found the following review helpful By D.K. on September 16, 2011
Package Type: Standard Packaging Verified Purchase
This little gem work as advertised and is worth every penny.
Its use is not limited to in car stereo/AUX. You can use it for any audio application that is plagued by a hum.

For those wanting a technical description: This little device is a stereo 1 to 1 isolation transformer. There are two discrete channels both isolated. The resistance on both ends of each transformer read 280 ohms with my DMM. Which means that it wont mess with the output of your device if you run a splitter, say into a pair of headphones.

I use it to eliminate the hum between my ham radio and my computer. It works perfectly for all the digital modes PSK31, RTTY and SSTV. The audio level is diminished a little bit, but that is a trade off. Louder levels and hum or slightly lower levels and clean sound. I'll take the later.

One last note. The picture of the item is not accurate. Though there is a picture lower on the items page that is accurate. The body of the transformer is more square than round and has the Kensington logo.
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