I believe this should also work with Flyaudio, Rosen, and Advent head unit. 1. move the bracket back and the unit forward then screw in. 2. get some washers 3. washer will go behind each bracket (if an area need more flushing, you can double the washer) 4. tape the washer to back of each bracket 5. hold the unit up, and to the left when screwing it back in And the result