display black out.
but..it's not working....3days new car! and I tried several times on off the car..but now display is black out..how!

but..it's not working....3days new car! and I tried several times on off the car..but now display is black out..how!
but..it's not working....3days new car! and I tried several times on off the car..but now display is black out..how!


