battery light

["Daniel R. LeFebvre" <danbu99@bu.edu>]

hi all,
                    after putting my third alternator in my 86 5000cs,
my battery light comes on sometimes.  it is faint at engine idle, and
brightens with engine revving.  what is going on?  i am totally
confused.  it is as if there is a little insect crawling around in my
car eating wires and components.  the sun roof, passenger seat, certain
window switches, and anti-locking brakes have ceased functioning (not
all simultaneously, of course).  i brought it to a mechanic to try and
find if there was an abnormal draw that was buring out my alternators,
but he couldn't find anything.  and the last alternator seems to be
holding up.  any ideas?  please email me directly.  incidentally, i
drove a 20valve for the first time the other day.  that thing screws!  i
didn't realize that the turbos in 20valves went up to 1.9 bar.  it makes
me want to chip my own vehicle to approach such performance.  thanks for
your wise responses.
dan
86 5000cs
191,000 miles