Been getting worse over the last few days, and I can't put my finger on it...
Sounds like two tablespoons being banged together, fairly high pitch, but distinct clink clink clink noise.
I figure it could be a whole host of things, but I was hoping that maybe I wasn't the first

Here's when it happens:

-It's intermittent.
-Not revs related, doesn't happen at standstill, revving engine makes no difference when the noise is there.
-Was originally only during coasting, following light application of the brakes.
-Now it does happen under mild power (possibly can't hear it on full boost due to induction/wind noise).
-Happens both on smooth and uneven roads.
-Clutch down/up, neutral or in gear - no difference.
-Suspension feels/looks ok.

Here's what I have checked:

-Crawled under the car front and back, can't see any major items missing or loose, same under-bonnet.
-Drove with left, then right, then both windows open, can't tell which side, however it feels like right hand side.
-Exhaust and propshaft are clear.
-Tightened exhaust to turbo housing bolts yesterday (were a little loose), no difference.
-Drive shafts and propshafts aren't moving (no sideways movement).
-Engine mounts look ok.

The only thing I can think of, is that the brake pads are on the 3 to 5 mm thickness, and the brake pedal feels a little spongy. Car brakes fine, but I was thinking that maybe one of the pads is rattling in the caliper due to lack of overall thickness

Any ideas most welcome