IQ horn upgrade

[caduceus]

Has anyone here upgraded their Toyota IQ horn to something that sounds a bit more meaningful than the fanny fart that the car comes with?

I have tried buying a two tone and fitted it with a replay, but the car does not seem to like it. I've tried a couple of variations of wiring it and it's not having it.

Any suggestions/tips for those that have successfully done this?


Thanks in advance.

Cad