Rear-compartment radio control

Years 1960–79 Models 1

Documented applications

1960–79 Confirmed

**Series 75 only**; code changed: J ('60–63), R2 ('64–65), 4 ('66–72), U67 RPO (1969–79, order A4 late)

This page aggregates every documented appearance of J / R2 / 4 / U67 in the Cadillac reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.