I have an Electronic rust prevention device I took off one of my old car. The car was an 04.....so it was not that old......it had no rust on it but dont know if that was due to its age or...... When I saw the device it was not hooked up. I took it off and forgot about it. Anyone have any experience with this type of device......does it work? I know the theory is sound.....the Navy has been using electronic rust prevention on its moth balled fleet. Anyone have an input on this? Not sure if it still works (powers on). May try to get it working.