3 ✓ Factory-verified

Cadillac · Regular Production Option

AM radio, signal-seeking

Years 1966–68 Models 1 Factory citations 1

Also described as AM radio

Documented applications

DeVille / Calais →

• 1966 ✓ Factory-verified

  All; kit prints code 3 as "Radio, AM"

  ⛭ GM Heritage factory kit — 1966 Cadillac VVI, p.71.
• 1967–68 ● Confirmed

  All

This page aggregates every documented appearance of 3 in the Cadillac reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.