Hard to watch this. Many many code violations and incorrect statements passed off as facts. Its almost a shame that these installs work because as long as it works people will continue to pass them off as correct. I'm not saying it takes a rocket scientist to install one of these, but if you don't know how to install it either do some research or hire someone. More importantly, if you don't know how to install one, DON'T FILM YOURSELF DOING IT and pass it off as actual knowledge. This kind of stuff can cause someone to get seriously hurt.