Dealers did the install on both the mirrors and the radios and antennas. Back in the day there were car stereo shops that sold and installed all manner of upgrade items. The car was hawked on the Fake book page for over a year whenever someone said that they were looking for a car or selling one. It seemed pretty well known that they were asking 45,000 . It had a Hipo motor pulled out and a 289 put in . Don't recall seeing a lot of build details on it either. The retail sale price seems ok but no details on the rest of the drivetrain fixes either or if Dad played Lego with the transmission and rear end but you get two axles in this deal. Hopefully one is the right one.