Radio, AM/FM stereo, electronically tuned, seek and scan, cassette tape, auto reverse, clock

Years 1987, 1996, 1998 Models 3 Factory citations 2

Also described as Radio, electronically tuned AM/FM stereo with cassette, seek/scan and clockRadio, AM/FM stereo, with cassette

Also documented for Cadillac Chevrolet GMC Oldsmobile Pontiac Saturn

Documented applications

Century — A-body (1982–1996)

1996 Confirmed

Regal — G-body (1983–1987)

1987 Factory-verified

includes U66; gnttype.org's 1987 option sheet; shared G-body code, cited from the Monte Carlo kit

GM Heritage factory kit — 1987 Chevrolet Monte Carlo, p.40.

Skylark — N-body (1992–1998)

1998 Factory-verified

GM prints "Sterio".

GM factory document — 1998 buick skylark rpo code list, p.1.

This page aggregates every documented appearance of UM6 in the Buick reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.