xB navigation ?'s
 

Is there any way to remove the startup Scion logo and replace it with my own? And is there any way to remove the warning screen that comes on everytime you turn on the car?

I'm pretty sure the warning screen is there to stay, its a legal disclaimer so if someone drives into a ditch while futzing with the navi Toyota can't be held responsible for it, since you have to acknowledge the warning to get past the screen.