Car squeaks like crazy

Did you have the rotors machined? If not that is most likely why they are squeeking, not because of the clips. If we are talking about the same clips, they go on the end of the pads to keep them from rattling, but the pads themselves should have spring retainers to hold them to the caliper. When you replace pads, you should always machine therotors to give the new pad material a fresh surface to mate to. If the rotor is shiny/uneven it will cause alot of noise. Also use high quality brake pads, cheap ones tend to be noisy