my car is a 93 del sol si with OE rear discs.it has always made a light chirping noise when driving around town.the noise goes away when you put your foot on the brake even gently,like just enough to cause the pads to start gripping the rotor without slowing down.thinking it was because the rear rotors are warped i put new rotors and pads on it yesterday but it still makes this noise.i jacked it up again and the rears will spin about 1 revolution before stopping when you spin them so i dont "think" this is a sticking calipher problem.any ideas,is this a real problem or should i just leave the radio on?oh yeah,no play in rear hubs either but they are originals with177k miles on them.