Since Eric is taking so damn long....
I was out today and decided to hit a couple of car stereo shops and a few auto parts stores to see what I could find since both antennas on my 7s haven't been working for a while and I just put an HD receiver in the Turbo. I found this
Metra Electronics Corp. antenna at 3 of them for 19.95 and one of the stereo shops had another style
similar to this for 49.95. I bought the cheap one just to try it out figuring worse case scenario it would be fine for the Vert since I don't use the radio that much in it. The damn thing works great on FM and FM HD stations. In fact I picked up more stations that I was getting before. Haven't tested it driving around or really mounted but trying it in several locations in the car just sitting there I was impressed. I also tried it with and without power to it just because I was curious. Without power it was still better than my antenna but when I put power to it, HUGE difference! But for AM stations, it doesn't seem to be any better (hard to tell around here, AM sucks) than the regular antenna. I want to try and use the AM antenna in the windshield to see if it helps but it ends in a female plug so I'm going to have to find or make a connector/splitter of some type to do it.