The LX450 had a car phone option. The antenna for said phone is in the rear most driver sliding window, hence it does not move. Not exactly dealing with some plebeian Toyota.
Other things you’ll notice in the future:
No speakers in the rear headliner
A useless subwoofer where a second excuse for a cup holder would be (assuming it’s never been removed)
An odd cylinder mounted on the front core support for the climate control
An odd sensor up by the window defrost vents on the dash, also for the climate control
A different wiring arrangement in the dash due to the climate control and stereo differences between the 80 and LX
Pink panties in the glove box (some of the more tenured members here can educate you on this one)