Radio, AM/FM stereo, electronically tuned

Years 1983–89 Models 8 Factory citations 21

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Also described as Radio, AM/FM stereo, ETRRadio, AM/FM stereoAM/FM stereo radio, ETR, minimum feature

Also documented for GMC Pontiac

Documented applications

Astro — First generation (1985–1994)

1986–1989 Factory-verified

1986 from the 1986 passenger van pages in the kit file labelled 1985. 1987 from the 1987 passenger van pages in the kit file labelled 1988.

GM Heritage factory kit — 1985 Chevrolet Astro Van, p.8.
GM Heritage factory kit — 1988 Chevrolet Astro Van, p.28, p.8.
GM Heritage factory kit — 1989 Chevrolet Astro Van, p.13.

S-10 Blazer — First generation (1983–1994)

1984–1987, 1989 Factory-verified

the 1983 page prints UUS beside the AM/FM stereo line

GM Heritage factory kit — 1984 Chevrolet S 10 Blazer, p.8.
GM Heritage factory kit — 1985 Chevrolet S 10 Blazer, p.30.
GM Heritage factory kit — 1986 Chevrolet S 10 Blazer, p.16.
GM Heritage factory kit — 1987 Chevrolet S 10 Blazer, p.14.
GM Heritage factory kit — 1989 Chevrolet Blazer, p.15.

Caprice — third generation, B-body (1983–1990)

1985 Factory-verified

GM Heritage factory kit — 1985 Chevrolet Caprice, p.42.

Cavalier — first generation (1982–1987)

1984, 1985 Factory-verified

1985: without seek and scan or clock

GM Heritage factory kit — 1984 Chevrolet Cavalier, p.10.
GM Heritage factory kit — 1985 Chevrolet Cavalier, p.38.

Celebrity — A-body (1982–1990)

1985 Factory-verified

1984 is not claimed: the page that prints it (1984 p.43) carries no readable model-year field

GM Heritage factory kit — 1985 Chevrolet Celebrity, p.44.

Chevy Van — Second generation G-series (1983–1996)

1988, 1989 Factory-verified

GM Heritage factory kit — 1988 Chevrolet Vandura, p.23.
GM Heritage factory kit — 1989 Chevrolet G Van, p.19.

Impala — sixth generation, B-body (1983–1985)

1985 Factory-verified

all models

GM Heritage factory kit — 1985 Chevrolet Caprice, p.42.

S-10 pickup — First generation (1982–1993)

1983–1988 Factory-verified

1984, 1986 and 1987 from the U66 speaker requirement remark

GM Heritage factory kit — 1983 Chevrolet S 10, p.30.
GM Heritage factory kit — 1984 Chevrolet S 10, p.18.
GM Heritage factory kit — 1985 Chevrolet S 10, p.24.
GM Heritage factory kit — 1986 Chevrolet S 10, p.17.
GM Heritage factory kit — 1987 Chevrolet S 10, p.23.
GM Heritage factory kit — 1988 Chevrolet S 10, p.20.

This page aggregates every documented appearance of UU9 in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.