The Bee Sting Aerials (the very small stubby one's) are a complete waste of time, the Black Helical ones, as fitted as standard should work fairly well (on FM) as there basically a VHF 1/4 wave wire centered at 98 Mhz, and wound arround a piece of fibre glass (ie. a 1/4 Helical)......
Doing much of my driving
"out in the styx" here in North Wales, I`ve found the stubby, black-helical aerial on my 1999 CDX to be very poor on F.M.....autoscan never picks up anything, so I have to enter known stations to get anything at all.
But....fiddling about with a electrical test-meter`s insulated flylead one day, I discovered that tying a simple knot in one end of the flylead and dropping the knotted end down over the external base-cone of the black helical aerial would improve reception significantly: I refined the idea a bit and replaced the knotted flylead with a slim, portable transistor radio type, 60 cm.{-ish} long, chromed, telescopic aerial
(off an old radio or try Maplins) which I simply attached to the black-helical aerial using black heat-shrink sleeving along the full length of the black-twisty car aerial......`no electrical connection seemed necessary as proximity seems to work fine.
I leave the telescopic 'add-on' extended (except for going through the car wash) and for such a simple 'work-around' fix, the radio reception is so-much improved.

If the idea of the telescopic 'add-on' doesn`t appeal; you can still try the knotted flylead-cable dropped around the base of the car`s std. aerial to see if there`s any improvement to be had with a better aerial.
