Fat Corgi

Has anyone ever hacked into the info display? I know that the Metra kit for the manual A/C controls does it, but mine has auto climate control being outside the US. I know the "Goodbox" does allowed you to change the display as well, but I am interested in something a little less fancy. For example, an accurate clock and a greeting message. I'm hoping to retain something in that display, or change the start up message so it looks a little less blank, apart from the climate control information when I eventually put in the Kanatechs (Corksport Double Din kit).