If your 80 Series Land Cruiser or LX450 has power windows then this mod is for you. Currently your driver's side window has a feature known as Auto-Down. This means that not only can you control the window's movement up and down but with one deliberate push down on the switch and the window will move all the way down without requiring you hold the switch down. Modern vehicles though also give you the ability to have the windows roll up as well, with one deliberate click, Auto-Up.
In order to do this mod it does require removing your master switch from the armrest and soldering this diode in place. Super simple if you have or get a soldering iron. This diode is all thats needed to purchase to complete this mod.