Purchased this a couple of weeks ago. I liked that they made me take a picture of my existing dash so they were sure to send the right replacement. I was a little worried when I saw that it really didn't come with any installation instructions at all.just a wiring diagram. However, everything was pretty much plug and play. I took some time comparing all the pieces and parts with the wiring diagram and then marking the plugins with where they were supposed to go on the back of the DVD player (where almost everything connects). The plugin block on the back of the DVD player actually has very faint letters marking each of the holes. I recommend that you take a black magic marker and copy the corresponding letter right above the hole and then do the same to the corresponding plugs. That way, when you are trying to put this all together in the cab of your truck (or car) you don't have to fumble around with the wiring diagram. Once installed, everything worked as advertised and we are quite happy with the final product. The only reason I am giving this four stars instead of five is because of the poor installation documentation.