I used express down modules from a late 90's Bonneville. Its a great modern convenience to add to an older car. The module is located in the drivers side door of the Bonneville and are easy to harvest, just be sure to take the wiring connector with it. The wiring diagram for the window circuit can be found HERE
. The website is in Russian but the drop down menus and diagrams are in English.
[This message has been edited by seajai (edited 08-08-2014).]