will older model XJ8 driver window switch pack(controls all windows) work on 03

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2003 VDP .Driver window control switch not working. All fuses and relays intact. Want to buy used replacement. What year- model etc will interchange. I bought a used switch but it will only operate the driver window. Other windows still work with their respective switches but not this used replacement wont operate them. I have no idea what year car it came off. Same body style. Paid $15 for it. Better than nothing.The wires leading to the switch are 22 gauge. They must go to a relay. I can't find any mention of a window switch relay in the owners manual. Strange.