Arch,86s had AM Stereo added as well...smaller ignition key and of course the 3rd brake light...
My old white/black '84 had the smaller headed key for the ignition. While I had to change the ignition cylinder lock because I didn't have the key when I first acquired the car, the original ignition cylinder was for the smaller key.
And I'm sorry, but I have trouble believing that earlier MK2's didn't have AM/FM stereo from the factory?! I mean, AM radio has been around since the age of the dinosaurs!! :runaway: Surely Toyota would've had AM radio in the earlier models, right?!?!