Hey Max, I don't think you're going to find anything really useful. If you take a look at what has been
around for decades, the long wires work best. The quality of the antenna seems to far outweight the
quality of the receiver for most case. I have a car with a $350 FM tuner that can't pull in stations my
PoS Escort will with the factory radio. In fact, my Escort can get both AM and FM stations that none of
my other cars or my home stereo can get (home stereo only uses 300-ohm dipole).
wires that constitute the FM antenna for iPods, Walkmans, etc., are really lousy, as anyone who has
tried to use one can tell you. Forget about picking up a station in a metal/concrete building. The
little stubby whip antennas built into headset with receiver built in are crappy too.
Sorry to be
the bearer of bad news, but I don't think you can get there from here.