I had the same thing but they lined up with the mirror for me so I
was pretty sure they were some kind of creepy spook lamps behind
me.  It didn't help that I usually saw them while touring in WV.

Edward

At 07:16 PM 5/16/2011, Rocket J Squirrel wrote:
>Last year during a long round trip drive from Bend, Ore., to Flathead
>Lake, Mont., I noticed a strange reflection in the passenger side rear
>view mirror. It looked like two small incandescent lamps and was only
>visible when the sun wasn't super-bright, like dusk or dawn. Probably
>visible after dark, too, but I was camping by then.
>
>Whenever I saw those lamps I looked all around the van to see if I could
>suss out what the mirror was reflecting. The plane of reflection was
>about an inch or so behind the plane of the mirror glass so I know those
>lamps were not some kind of creepy spook lamps behind the van, but a
>reflection from somewhere inside.
>
>Not until I pulled the cover off the auto shifter console a few weeks
>ago did I discover that what I was seeing were the two instrument bulbs
>used to backlight the shifter's PRND21 legend.
>
>Thought I'd share that.
>
>Okay, I'll be on my way now.
>--
>Rocky J Squirrel
>'84 Westfalia: Mellow Yellow ("The Electrical Banana")
>'74 Westrailia: (Ladybug Trailer company, San Juan Capistrano, Calif.)
>Bend, OR
>KG6RCR