Speakers, 4, 2 rear shelf, 1 coaxial per door

Years 1990, 1998–05 Models 4 Factory citations 5

Also described as Speaker system, dual front coaxial and dual extended range rearSpeakers (4), 2 rear shelf, 1 coaxial per door

Also documented for Buick Chevrolet Oldsmobile Saturn

Documented applications

Firebird — Third generation (1982–1992)

1990 Single-source

Firebird years: 3rdgenformula option pages 1990

Grand Am — N-body (1992–1998)

1998 Factory-verified

GM factory document — 1998 pontiac grand am rpo code list, p.1.

Grand Am — Fifth generation (1999–2005)

1999–2000 Factory-verified

GM factory document — 1999 pontiac grand am rpo code list, p.1.
GM factory document — 2000 pontiac grand am rpo code list, p.1.

Sunfire — J-body (1995–2005)

1998–2005 Factory-verified

GM factory document — 1998 pontiac sunfire rpo code list, p.1.
GM factory document — 2005 pontiac sunfire rpo code list, p.1.

This page aggregates every documented appearance of U79 in the Pontiac reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.