Rear brake(s) pads rsonating in reverse

MartinWilton

Guest
I have an '02 plate V5. Had new rear pads fitted about 3 K miles ago. Ever since they were fitted I am getting intermittent resonating when reversing, only (can be quite noisy & v annoying). No brakes applied, handbrake off. Since then have changed the discs and new pads to both rears. Still does it. Genuine SEAT parts used.
Anybody got any ideas?
 
Adrian Flux insurance services - discount for forum members.