wtf is wrong with you people? maybe next time u should give a proper title? #1 check is pidgin has a notifications and if not try to port them and intigrate into hildon notifications ( but it would be painfull to get them all the time. #2 just connect car as headphones and it wouldn't matter what sound you transmit from n900 (music/radio/calls/whatever_makes_sound_on_n900)