The windows in my '68 convertible were the same-- they would go up & down without the key being in the ignition. I had a problem with the windows not working, which Robert Soule fixed, and in the process he discovered that a previous owner had bypassed the relay in order to have the power to the windows alla da time. The relay was waaay up inside the driver's side kickpanel area. It took a lot of studying of the wiring diagram to even see that a relay was there. (It also turned out this relay was bad; whether that was the reason the guy had bypassed it, I don't know.) Once Robert fixed the relay everything worked "normally," that is, power only parta da time, when the key was in ACC position. It was indeed a safety issue. When these cars were new, the windows would go up with quite a lot of force-- and they wouldn't stop until you let off on the switch. It could do more than pinch a finger, it could strangle a small child or dog (Saw it almost happen with a dog. On Cadillacs, you could put all 4 windows up simultaneously-- can you do that on Imperials?-- and there was a dog in the backseat sticking it's head out the window. Up went all the windows and up went Fido.) There is a small cylindrical light in mine under the flap (?) that hides the door handle (on the inside). Don't know my serial # off hand! Mark M