I can't help you with this, hopefully someone can, but i agree with you because the problem applies to so many vehicles, including lorries where the indicator click is almost unheard and the silly little tell tale repeater light un-noticeable in the general dash clutter.

Bring back the 5w bulb on the end of the indicator stalk and the big loud clicking relay that Scammel used on Crusaders, no missing them.

Actually whilst on a roll/rant, i absolutely detest self cancellors, the ones on my current MAN lorry are utterly useless (is there a test in the USA they could fiddle for those-:) invariably if approaching a junction other than a dead straight road i have to re-indicate an indicator i can't hear (and barely see the tiny repeater) up to half a dozen times because the cancellor pawl is so sensitive...Vorsprung Dirk etc bah!

Edited by gordonbennet on 30/09/2015 at 11:54

IIRC Toyota deliberately downrated the sound of indicator warning sounds after complaints in the early part of the 2000s about the noise of them.

Edited by Avant on 03/11/2015 at 01:21