ball3r90

Hey Guys, this might seem like a stupid questions..but i need it:)..well i just got my AVIC-D2, and i figured most of the stuff out..all i need is how do i turn off the power in my car...like i dont want the entire motor or anythign to be running..i jus twant it to be a blank screen...i read my manual and it says something about slecting ACC mode in the mode. but i dont know what to do...so if you can help me that would be great help thanks Thanks