I got all enthused about this several months ago, but haven't completed the
work yet.

1.  The "bulb carrier" is 95% set up to take the extra bulb.  There is a
"trace" from the blank bulb socket to the connector, but you have to add a
connector and wire to the harness end.

2.  The blank bulb socket does not have a contact for the + on the bulb, but
by working carefully, you can remove one from a "donor" carrier and install
it.

3.  Here's the glitch.  For an effective rear fog light, you need a bulb
equivalent to a turn signal/brake light (32 cp?).  This size of bulb won't
fit into the small hole on the reflector (and I have suspicions that the
"reflector" may not be coated with a reflective surface).  So you have to
open it up.

4.  For the wire to the front, when I was troubleshooting the dynamic oil
pressure system on my '91 (see a posting in the summer of '97), I noticed a
grey-with-green-stripe wire in the rear harness termination box and up by the
fuse box.  Neither end was connected to anything.  Could this be used?  I
think maybe it could as I could find no similar wire on the Bentley wiring
diagram.

-Blaine