I'm not sure, but this upper display dying happened not long after removal of the dvd drive in the trunk.
(Mine had the error and mechanism failure, so didn't see a point in keeping it connected).

Disconnected / reconnected battery but that didn't do anything. All interior fuses checked out fine.

Is there a part # for this replacement? Has anyone actually fixed the radio upper display that ceases to work?

 

IIRC, the upper display needs the dvd drive in the trunk