I'm looking for a small flat HDTV antenna that isn't amplified. I've got a 12v DTV converter box coming my way and now I need an antenna. I'm hoping to find a nice flat one that will squeeze between the headliner and roof in the E. Has anyone found anything at walmart or bestbuy that works well? My new HU has an AV input and I'd love to be able to watch the news on my way home from wherever. TIA.