Got some squeaking noises coming from your back brakes? There is a clip that holds the handbrake shoes against the backing plate. If that clip isn't holding the shoes against the backing plate then the resulting vibration can causes squeaking sounds. VERY easy to sort out. Remove wheel, caliper, disc, handbrake shoes, etc. Either replace the clip with a new one or just bend it back into place. Reassemble. I had rear end squeaking noises a while ago. Took it to a taxi mechanic and he had it diagnosed before we even got out of the carpark. The car was up on the hoist and the noise stopped a few minutes later. Photo of the clip: