I just purchased a KDC-X979 and the demo mode is getting very annoying. I read the manual and could not find any information on how to get my head unit out of demo mode. I figured if I reset the thing for 5 seconds it would work, and no it didn't. I tried it several times more and I am sure unhooking the battery cable would not work. If anyone can help me with my problem I would greatly appreciate it.