UM2 (A1) ● Confirmed

Cadillac · Regular Production Option

AM/FM stereo w/ 8-track

Years 1977–79 Models 1

Also described as AM/FM stereo w/ 8-track (digital display)

Documented applications

DeVille / Calais →

• 1977 ● Confirmed

  All

• 1978 ● Confirmed

  All

• 1979 ● Confirmed

  All

This page aggregates every documented appearance of UM2 (A1) in the Cadillac reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.