Thanks for your reply.  I had a chance to look at the car and - not
surprisingly - when I bounced the car by pushing on the front fender it
didn't make any noise - Murphy's law.  

The stabilizer bushings looked OK and the lower control arm bushings
weren't shredded.  No oil running down the struts, dust boots look OK.  
The rubber ring at the top of the strut mount looked like it was higher
than I would expect, but when I jacked the car up they only went down
maybe 1/4 inch or less.   And I assume shge would report clunking rather
than squeaking if it was bad strut mounts.  Both strut mounts look
identical relative to "height."  Ultimately, I suspect it will have to
go the the dealer and unfortunately, it's a dealer that charges Porsche
prices for VW repairs, and one that doesn't go out of their way to save
you money.

In many cases, cars seem to have certain repeating problems due to
manufacturing or design issues.  What I was looking for was something
like, "Oh yeah, 03 Jettas had a bad batch of ball joints in them... See
'em all the time."   If that were the case, I might try to fix it myself.

Bill