It wasn't until my mate said he finds the noise really annoying, i can't say it bothers me too often as i usually have music easily overpowering it. If you could somehow mess with the chip and get a better sound i'd love to know!
as for the 3-blinker thing, that really pisses me off too. its more unsafe than safe. I have gone to merge a couple of times and prematurly clicked the indicater as i turned to look and there was a car there so Ive decided not to merge.. instead of a quick flash its sitting there flashing 3 times and confusing the traffic.
Sorry to go off topic a bit. All-in-all the blinker noise is quite annoying and does sound a little cheap. somebody please fix it. haha