I've got a Sprint Treo 700p. I connect it to my Prius via the Aux line to listen to tunes. When I also have the charger connected, I get a static hum. Anyone else have this issue? Any fixes? I've heard something about a ground loop filter...does that work?
I had to get a Ground Loop Isolator for when I'm using my portable XM radio. I got mine at Radio Shack.