Less Horn Blowing

Like several other people posting in this category, I live in a noisy urban area. New York City. It can't get much more noisy than this in the US. I feel that not a minute can go by during the day that somebody twenty cars back isn't laying on his horn because the car at the intersection is waiting for people to clear the crosswalk or some similar scenario. So, in the interest of helping to preserve the hearing of all pedestrians a little, I propose that all cars be manufactured with a horn inside that is as loud as the horn outside (subjectively speaking of course, no need to hurt the driver either). Obviously a difficult challenge would be to make it tamper-proof. Imagine the self control most people would be able to muster if they were forced to subject themselves to the same noise they make everybody outside their car put up with. The horn is intended for alerting people (pedestrians and other drivers) of an impending emergency situation. Of course there are times you need to wake the person up in front of you at the light or other small things that twang your strings, Those are the times you would need to decide just how little would be enough to get them going without making yourself crazy. I drive, so it's not as if I don't understand how frustrating it can be. Some way to force a little restraint seems to be needed.