Hiya all.
I have a Duratec 4/4 of 2005 vintage which has the quiet and dim type indicator warning set up we all suffer with. I fitted an indicator warning buzzer to my car for the obvious reason. Very soon after I fitted it I found it irritated me,so much so that I removed the buzzer and replaced it with 2 LEDs fitted on the flat face of the steering wheel cowl,(the one that faces the driver which is exposed when you fit a Motolita type steering wheel and mounting boss).
The LEDs cost about 3 quid from eBay. I did this about 3 years ago,it works and I have had no problems with the indicators since.
Just an Idea that may help.
Best wishes.