iPod Hiss When Charging

[Whalensdad]

I have found that when my iPod is connected to my stereo AND is plugged into the cig lighter to charge, I get a hiss from my audio. If I disconnect the cig lighter charger, the music sounds great. I believe it is a ground loop problem but I'm not sure. Any suggestions on how to eliminate the noise AND still be able to charge while playing?Thanks,Whalensdad

[mcgusto82]

my cell phone does the same thing.i've noticed that when using the outlet in the center console, this doesn't happen. or i'm just simply not noticing it.

[ColonelPanic]

Same problem here with my phone charger. Unlike mcgusto though, if I plug it in the console, the noise is still there. It doesn't affect FM broadcast stations - just the itrip or the Sirius FM transmitter built into my Sportster. Probably poorly designed power supplies for the stuff we are charging... Needs a filter somewhere, I imagine.

[GMJAP]

This is most likely a ground loop problem. It happens cause the audio source is grounded to the car in two different places (one- audio connection, two- power connection).The grounds can be at slightly different voltages, so current travels between them through the ipod connections. This causes the noise.Try looking on audio dealer sites for a "ground loop isolator".