This thing in a word is COOL. It gives older vehicles the ability of one touch raise and lower of the windows from the drivers switches as well as allowing the vehicle alarm system and its remote to raise or lower them. You will need the factory wiring diagrams and know how to read them to install this product, especially for the passenger side window. You will also need to be able to fish 4 wires into the drivers side door which is not always as easy at it seems but it is worth the work. I also connected it to my vehicle alarm. Now I don't have to worry about rolling up the windows prior to setting the alarm. When I set the alarm, it rolls up the windows for me. It also gives me the option of leaving them in their current position while setting the alarm from the alarms remote. It also gives the ability to either vent the windows or fully roll them down from the alarms remote whether the alarm is set or not. The only thing that you can't do is roll up the windows from the remote unless you set the alarm and if the alarm is already set, you need to turn it off and then back on to roll up the windows. Not a huge deal but then you have to deal with the alarm chirps setting it off and back on again, especially at night. If I were to add anything to this system, it would be to add a second accessory input for window roll up without setting the alarm. This system will also roll up the windows if the alarm triggers and you can set it to roll them up for a full trigger only or even just the warning chirp. The system can control 4 windows but in 4 window mode, it can only roll them up and there is no one touch control in that mode so if you have 4 windows, I would suggest getting two of them to give you full 1 touch control of all 4 windows.