I installed this thing and it took me 16 hrs total. I made sure to do the most perfect job I could. No wires visible running in car our outisde car. All wiring is run behind molding discretely. The switch on my center shifter console is a kill switch for the entire laser jammer/detector system. Obviously mute button next to it. I used a special degree level to make sure the shifter heads were no more than 2 degrees off. I believe last measurement was 1 degree from level. I have a huge truck to cover so I have only medium faith in this system but at least the vehicle is dark. Hope attached pics show up!