So, radio reception has been (much) less than stellar in our 2004 16' CCD. It improves slightly when the Winegard TV antenna is raised, so I always assumed that the radio was hooked to the Windgard via a splitter for FM, as commonly found on house TV antennas.
This weekend, I'm on the roof for our very first waxing (we bought Toasty new in Novemeber 2005!). And what do I see? This little 1-foot rubber whip antenna, lying flat against the roof. Go down, tune in on a distant station with poor reception, crank it up, go back on the roof, prop up the antenna, and POOF! it comes in clear as a bell.
Tighten up the hex screw, and the antenna stands on its own. It's no taller than the AC unit, and flexible too, so no clearance worries.
Just an FYI for anybody else who may not know this antenna exists. Just good old low-tech FM, but sure beats a blank!