The most fun feature to me is getting into the NAVIGATION test mode and see all those hidden information of CX9. For example, I can see how many GPS satellites that are visible to the GPS system, current bearing, steering angle by gyro, self-testing of microphone, vendor of my stereo system,
current error code, clear error code, etc....
Same procedure does not work on 2009-2010 version. Anyone with a 2009/2010 WorkShop manual may be able to find the procedure that work for 2009 and 2010 CX9s. For 2007 and 2008, you can find the procedure on other threads. If not, give me a PM. I will post it here. (yawn)