I'm having issues with my z1. Recently I can't access any of the gps menu features that are cut off while driving even when I'm sitting still. Basically the only way I can use the fully functional gps menu is to hit the reset button on the z1 and then flash my lights. Without reseting (rebooting) I am limited to the "return home" button even when parked. What is annoying is then everytime I need to look up an address I lose my radio presets. Have any of you ever heard of this happening? I'm hoping it is something dumb that I can fix without pulling the hu out and sending it to pioneer.