The plug in can be downloaded from their web site with steps on how to configure it .. and for the antenna adapter .. actually it's sold on the same site! I got mine one month ago after discovering that yours doesn't work in Europe .. I ordered the unit with the adapter, installed the plug in (I'm using CF3.1) and finally I have an FM ! The unit is sweet and working smooth so far. I studied the reviews .. without connecting to the car antenna .. its reception is poor .. no other comments.
Not much options out there for Europeans anyways .. I never tested Silabs .. but u wont find alternatives .. good luck !

