lol I have one of those phones also they are so cool becuase of the flip out keyboard I mean I can actually naturally reply back to Instant Message's people send me on AIM instead of freakin playing the number game....
for FM acutally reception is damn good, you have to have it plugged into a headset and it won't play it through loudspeaker prob could be hacked if you opened it but I have yet to try that. It won't let you switch to FM unless it detects a headset plugged into it! It will do Stereo FM also....
as for the FM to car It would work if you spliced the wire and ran it through your Line in on your sound card but I don't see why anyone would go through all that to play FM channels.