hi everyone i have a 2007 grand prix gt it didn't have the onstar, or monsoon i just replaced the stock hu which was just a cd player nothing else. i used a intergration kit so it would still have the door chime,and all the other sounds it should have. and everything else works great but the info display no longer has the date,and month? don't know what is going on with it? any help would be great. thanks