loud clicking under dash '88 90

["Michael Cotton" <yu112257@YorkU.CA>]

I have an '88 90 non-quattro with an annoying problem.
Every once in a while a loud clicking starts going off from somewhere under
the driver side dash. It sounds like a relay gone nuts!  I replaced the turn
signal relay but this didn't help.   The only pattern to the problem is that it
only happens when it is cool outside - 5 degrees C or less (approx 40 degress
Farenheit I think!).

Can anyone shed any light? (or quiet)

Thanks
Mike

'88 90
'85 Corvette