I used to have the pioneer premier deh p900r and it did the same thing. I dont have that deck anymore but I do know that there is a way to turn that feature off in the settings. I believe the radio had to be turned off and then I had to enter into the menu. There was definitely a way to make it stop doing that up until you change your car battery then it goes back to that "alternating display" mode since I guess its the default.