Had this problem for some time now and its getting increasingly frustrating
When ever I plug anything into my cigarette lighter socket it throws the radio signal way out! It makes it almost impossible to listen to the radio, its as if it isn't tuned in properly but when I try to change the tuning it won't pick anything up at all.
also if I am listening to anything through my aux jack there is interference which seems to change along with the engine revs.
Wondered if anyone else had had this problem or might be able to advise how to fix it? my guess is some form of ground loop but not sure where to start looking.