>The big problem is going to be finding a way to isolate
>the headphone ground in a way that doesn't negatively
>impact audio quality, but allows the SI4701 to use
>the headphone shield line as an antenna.

Coilcraft make some nice wideband transformers where you could put the
primary in the shield line allowing you to keep the Rf grounding away from
the audio side, or some itsy 0608 chokes if you wished to capacitively
couple from the shield.

If you order samples the minimum quantity they seem to supply is 4, even if
you order less than that.

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