I used to have the avic z2, and on that navi i could change the volume of the "ding" sound when you press a button.. I have the Z130BT now and I can't find that setting anywhere. PLEASE tell me that is doable on this model, because that shit is annoying how loud it is!

There is a way that you can shut the beep off when you press buttons. You cannot change it up an down. Its on or off. I'm not in front of my unit but try system settings / volume and see if it is in there. There are controls for the button press beep and the VR beep along with guidance voice, phone ringer volume, and phone voice volume. If it is not in that directory keep looking, it is there.