I was using the headphone jack and using a cable to the aux input jack in my car. I connected the phone to the car charger and plugged it into the cigarette lighter/aux charger input. Whenever I was listening to Pandora or music from SD card while the car was running I was getting static and general noises from the car engine. If I unhooked the car charger the noise would go away but when plugged back in the noise would return.
I went to my local Verizon store and they said that Verizon did not have a filter for this problem.
I went to Radio Shack and they have a product that costs about $3 to cure this problem. It is called a "Snap choke Core". It is a little piece of plastic that snaps over your car charger cable. Two come in a package. Two were needed on one car charger cable. There is no rewiring or anything... just a simple snap of plastic.
It helps prevent electric magnetic interference (EMI) and radio frequency interference (RFI). It snaps over the coax, audio or AC Cord.
I got a18x29 5x5 5mm ferrite core.
The Radio Shack bar code is 0 40293 64760 6