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Discussion Starter · #1 ·
I have an MP3 player that I want to play through my car stereo's AUX plug. When I connect the car charger to the player (I have tried several different players) I get as annoying hum through the speakers. When I unplug the charger, the hum goes away and the music plays properly. I have tried several different chargers and several different MP3 players and the problem continues.

Any solutions, ideas or suggestions would be appreciated. Is there perhaos a filter available that I could use in this application?
 

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Discussion Starter · #3 ·
Thanks, Snoopdog.

The only issue is that the hum occurs on the power side of the MP3 rather than the output side. It has the plug that goes into the car's cigtarette lighter/power point on one end and a mini-USB plug on the end that plugs into the MP3 player. It's when I unplug that cord that the hum goes away.

I liked the one you pointed out at Amazon and it would certainly fit my player but I don't see how it would help the hum on the power side.
 

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Yea, sounds like a ground loop. On pro amps they have a ground lift to stop such humming.

The power side and output sides are connected. Thats where the power from the output side comes from :wink:
 

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Discussion Starter · #5 ·
Si, is your recommendation that the Amazon Ground Loop device will solve the problem or are you suggesting some other solution?

Sorry for my ignorance of things electrical but I'm pretty much limited to "Don't stick your tongue in a lightsocket."
 

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sorry for my ignorance of things electrical but i'm pretty much limited to "don't stick your tongue in a lightsocket."
hahahahaha
 
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