OK folks. It's official. I had TSB EL012-06 installed this afternoon.

1) Since it was a warrantee repair they had to replace the DVD themselves (as opposed to me doing it). Got a free carwash out of the deal. According to the service rep the funny money cost is $900.
2) Per the TSB, they retained the old DVD (which I have a copy of of course). What they did with the old DVD is uncertain. They are suppose to destroy it.
3) The new DVD has a new part number suffix but is still Level 5.1.

And drumroll please ...

4) The Volume, Icon, Blank blah blah blah override does not work. Nope the secret upper and lower left screen position are not touch sensitive.

So if the NAV override is important either avoid EL12-06 or build yourself a hybrid (no pun) DVD with the old microcode.

GH