Rear brake noise

F'n minivan brakes squealing again! MAYBE FRONTS.... Ill have to check the fronts now. I think those rear pads suck. They looked very thick, but I don't need semi metallic or ceramics back there. Ill go back to 'velvet' composition pads if needed to get the squeal out. The fronts were looked at a month ago when I replaced the passenger rotor. The old one was noticeably worn with hot spots showing through. I have the last year of the "small" rotor front brakes. Mid year change increased the front rotor size 20%.