head unit turning on and off showing security error code

[bodhi03]

hey guys, my head unit keeps turning on and off randomly and everytime it comes back on it pops up saying security code error and then goes back to normal for whatever period of time till it turns off again. my car is a 06 bf falcon. any suggestions on how to fix? killing me with out aircon in this heat, cheers

[k31th]

It'll be a loose connection somewhere back there. Take it to an auto-elec; should be a reasonably easy fix.