I have a PUG 406 1.9TD 1998. Today I noticed for the 1st time a clicking noise behind the dashboard/glovebox are on the passenger side. Its a strange one this, a series of 8 or so audible 'clicks' then a short (second or so long) faint mechanical whiring noise. This is repeated over and over again. Any ideas at all as to what this may be? cheers...