Civinfo Hobbyist Trader
Car: 2010 CTS GT
Join Date: 8th May 2013
Location: Cambridge, UK
Thanked 410 Times in 330 Posts
Interesting, I am glad someone has finally tried this, since there have been a few posts about it with no one having actually tested it as yet.
I was under the impression that the clock screen should work correctly, but that doesn't appear to be the case.
The module could be faulty, but I am guessing that it isn't.
Since it is designed for the clock without nav I guess the input signals to the screens must be different.
It is a definite shame if that is the case, but I do hope you can find a way to get it working correctly.