It was a factory in-dash option in 1964, I have two. Jim Carter's site mistakenly lists 65 as the first year. GM would not have put operating instructions in the 1964 owner's manual if it wasn't available yet.


My \'64\'s in the Gallery
Pictures in my Photobucket
1964 C10 Custom Cab 350/700R4
1964 Suburban 350/700R4
1979 Ford F350 4x4 400/c6