I am new to this forum.
Last night, five minutes after logging on, I learned the "1791" secret.
Tried it this morning. My wife watched a DVD from the front passenger seat. That DVD was played on the in-dash DVD player. (I am driving and have my eyes on the road, of course.) The kid's in the back were able to watch the same DVD on their RSE Screen. All of this with the car in motion.
This forum is a gold mine of useful information.
http://www.cadillacforums.com/forums...ead.php?t=9906 (Navigation system malfunction?)