[ChR1s]

We had a Sportster, utilizing the FM modulator. It sucked. They sent us a replacement. It sucked harder. Even if you do get a decent frequency selected, chances are the signal-to-noise ratio will vary as you drive around, causing the Sportster to spew its own noise again. We've got a Stiletto wired directly via AUX input to the head unit now. Much better, but still too many damned wires dangling. A Kenwood DNX7100 will be replacing the whole deal sooon.

re: home receiver FM reception
It DOES require a lead connected to it -- a length of speaker wire will probably work well enough.