ORIGINAL VINTAGE 1969 CADILLAC ELDORADO AM / FM STEREO RADIO No.7307525  95CFM3 - with the External Amplifier Only7308955 95CMP11 that connects via the umbilical cord to the Stereo Radio, 1969 was the last year for the External Amplifier whereas 1970 WAS THE 1ST YEAR WITH THE INTERNAL AMPLIFIER AS OPPOSED TO THE EXTERNAL AMPLIFIER WITH THE UMBILICAL CORD CONNECTION TO THE STEREO RADIO UNIT.