Actually I'm kind of glad my car doesn't annoy anyone, by reminding them that I am too lazy to look back at my car, when I am hitting the remote in order to lock it.
Especially late at night, during the summer, when everyone has their windows open, and is trying to sleep. (With their loaded 10mm Glock under their pillows.)
If you really need a confirmation, all you have to do is look at your turn signals when you hit the button.
If that's too hard to do, or you are legally blind and can't see the turn signals, then the best suggestion is to take the car to where you got it, and demand your money back.
There are plenty of annoying horn honking reminders, built into other cars out there you can buy.
And just to make you feel real good about all this; when you bought the car, why didn’t you ask about this feature?
Complaining that a car has some option or other, not installed on it, AFTER the purchase, is kind of dumb, don't you think?