I've had my pre for a while and finally i plugged it into my car via the 3.5mm jack.

When I plug the cable it makes a high pitched static noise and everytime the phone slightly moves the same noise occurs. My zune and ipod don't have any problems, I switched out the cable but the pre still makes lots of static noise. I'm thinking the jack is broken.

I have the EPP so should I take it in ? (after wiping all the homebrew of course)