Anything man made can be screwed up even right from the factory. Depends on which day it was made. Mondays and Fridays are good days for mistakes to be made as employee absenteeism is highest on these days. Looks like there was 5 people "sick" the day your car was made. They take people from other parts of the line and fill in the gaps. If someone is unfamiliar with what they are supposed to do and just installs the parts from the pile in front of them you could end up with documentation not quite matching the end product. No wire for the speaker then there's no point in putting one in, it says drum brakes but theres a pile of disc brakes here so we'll put those on, I like this colour top better with this colour paint anyways, and so on. "Slick" the salesman probably had some talking to do but sold the car anyways. I worked for a manufactured home dealer who pre-sold a $70k home, did the complete setup, and then discovered the interior of the home was blue when it should have been green. ooops!
