help. radio lighting up but not working.

[DeerPark]

hey. i have the security code for my headunit, but the screen isn't coming on for me to enter the code. However when i turn on my headlights, the headunit does light up. I checked the radio fuse underneath the driver side kick panel and it's fine. Anyone experience this before? thanks.

 

[DeerPark]

also, the anti-theft light is blinking

 

[AcMatt]

mines doing the same thing...All the fuses are fine...i even replaced them anyway..engine bay and interior fuses..it just stoped working out of the blue