Please help my Clarion Flip Out Head Unit is acting up?

Check car fuse if contacts are loose then will cause to act up, best bet replace fuse for neww also may be dirt build up (say smoke and such) or wear of the contacts them selves, if try all this and still acting up then yes it has run it's course and it is time for a new. This is not your typical replacement part so all will have to be replaced.