Australian Car Repair Issues? Ask an Auto Mechanic for Answers ASAP
I am sorry that wasn't what you needed my friend. I am afraid that without being able to look at the car in person it will be nearly impossible to determine the cause of your noise. One last suggestion would be to use a tool called a chassis ear that will enable you to attach clamps to suspect areas of the rear suspension and run cables from the clamps inside the car to a box that can switch channels to narrow it down, but I doubt that is something you have available.