try it without wheel trim[ may be something loose in it] could be anti rattle spring on calliper missing/broken!also try braking gently when noise is on to see if it dissappears-if it does then it is probably pads rattling.
k
May 2008
probable constant velocity joint,outer cv of the drive shaft.will be more noticable on full lock
caine
May 2008
Automatic Answer
We may have found other answers which could help you.