I'm looking for someone who has done an HUD install in a car that doesn't have one. I took out my gauge cluster and lucky me I have the wire harness for it sitting back there as some Grand Prixs do (even ones that don't have an HUD). So I know I could hook it up and cut out a piece of my dash trim for it, my only concern is there doesn't appear to be a place to set the HUD unit and keep it stable, will the gauge cluster hold it in place or what?