With all the muddy and wet weather here in the Northwest, I surely wish to have wipers on my back windows. Has anyone ever tried to design custom wipers for barn doors on the '92 to '99 Suburbans? Maybe someone has a tip, does any standard wiper arms from a different vehicle fit the size of the window in the suburban? I'm thinking the motors could sit inside the doors and the pump / washing fluid tank inside the side piece on the right side of the trunk. Again, has anyone ever tried this?