When were emergency flashers available as an option on Imperials? There's nothing in my 1959 literature, but a mechanic friend thinks Chrysler offered them in 1960, perhaps as a dealer add-on. I found no reference to them in my 1964 Imperial and Chrysler sales brochures, but did in a 1968 Chrysler brochure. I want to add them to my '59 as a measure of safety, operated by a discrete switch or knob at the base of the dash. I was told that any set up that doesn't work as a steering column pull-out knob would probably be okay. I can't tell from the '68 brochure where the switch was located. Any suggestions from the group? Neal Herman 1959 Imperial Crown 1965 Pontiac Bonneville 1972 Buick Riviera 1983 Chrysler Cordoba 1997 Buick Riviera