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2009 Nissan Sentra - High Pitched Speaker Noise

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Modeps

Modeps

Lifer
I've got my iPod plugged into the aux jack in the front of my new 2009 Nissan Sentra SL's radio, and whenever I turn on the headlights, I get this irritating high pitched sound over the speakers. Turning off the lights makes it go away. The sound doesn't drown out the music or anything, its just annoying as hell... any advice?
 
Does this only happen to your ipod, or to the radio to?

Does this happen when you ipod is plugged into the power outlet in your car, or when it is running on battery power?

It could be a couple of things - the most likely is you're getting noise through the power plug and it's being transmitted to your ipod (if it's plugged in).
 
Originally posted by: Pulsar
Does this only happen to your ipod, or to the radio to?

Does this happen when you ipod is plugged into the power outlet in your car, or when it is running on battery power?

It could be a couple of things - the most likely is you're getting noise through the power plug and it's being transmitted to your ipod (if it's plugged in).
Click to expand...

I have not noticed it from the radio, but I also primarily use my iPod instead of the radio (I'll give it a listen again on my way home from work). The iPod is running on battery power, not plugged in.
 
There are a couple of other easy things to try: Get a different jack cord and make sure it's a different length - if it's an order of a wavelength it could be picking up interference from something in the car. Also make sure the cord is reasonably thick instead of one of the super thin ones - the signal from the ipod needs to be amplified to come out your stereo, and as a result the noise is amplified too.

Finally - what bit rate is the song and where did you get it from? Poorly recorded songs can have lots of noise.
 
A Ground loop filter plugged in between your ipod and your stereo might work - it's certainly a cheap try at an answer. You can find them online for under 10 bucks. Make sure you get an RCA style rather than a power-line style.
 
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