Speaker system, premium audio, branded, with amplifier

Years 2006–09, 2014–18, 2025–26 Models 10 Factory citations 22

Also described as Audio system feature, Bose premium speaker systemAudio system feature, Bose premium 8-speaker systemSpeaker system, premium audio branded, with amplifierAudio system feature, Bose premium 8 speaker system

Also documented for Buick Chevrolet GMC Hummer Oldsmobile Saturn

Documented applications

ATS — Alpha (2013–2019)

2014–2015, 2018 Factory-verified

7 speakers in the 2014 guide, 9 in the 2015 coupe guide; the ATS-V guide gives no count

GM factory document — 2014 cadillac ats fleet order guide wayback, p.4.
GM factory document — 2015 cadillac ats coupe fleet order guide wayback, p.2.
GM factory document — 2018 cadillac ats v fleet order guide wayback, p.2.

CT6 — Omega (2016–2020)

2017 Factory-verified

base: S

GM factory document — 2017 cadillac ct6 fleet order guide wayback, p.2.

CTS — Sigma II (2008–2015)

2008–2009 Factory-verified

GM factory document — 2008 cadillac cts rpo code list, p.1.
GM factory document — 2009 cadillac cts rpo code list, p.1.

DTS — G-body (2006–2011)

2006–2009 Factory-verified

GM factory document — 2006 cadillac dts rpo code list, p.1.
GM factory document — 2009 cadillac dts rpo code list, p.1.

Escalade EXT — GMT900 (2007–2013)

2007–2009 Factory-verified

GM factory document — 2007 cadillac escalade ext rpo code list, p.1.
GM factory document — 2009 cadillac escalade ext rpo code list, p.1.

Escalade — GMT900 (2007–2014)

2007–2009 Factory-verified

GM factory document — 2007 cadillac escalade rpo code list, p.1.
GM factory document — 2009 cadillac escalade rpo code list, p.1.

SRX — Sigma / GMT265 (2004–2009)

2007–2009 Factory-verified

GM factory document — 2007 cadillac srx rpo code list, p.1.
GM factory document — 2009 cadillac srx rpo code list, p.1.

SRX — Theta Premium / GMT166 (2010–2016)

2016 Confirmed

Standard, Luxury Collection: S; Performance Collection, Premium Collection: not available; GM's 2016 SRX order guide (GM Authority's copy, published September 18, 2015)

XT5 — C1XX (2017–2026)

2025–2026 Factory-verified

Luxury: S; Premium Luxury, Sport: not available

GM factory document — 2025 cadillac xt5 fleet order guide rpo codes, p.1.
GM factory document — 2026 cadillac xt5 professional vehicles fleet order guide rpo codes, p.1.
GM factory document — 2025 cadillac xt5 fleet order guide, p.1.
GM factory document — 2025 cadillac xt5 fleet order guide, p.18.
GM factory document — 2026 cadillac xt5 fleet order guide, p.1.
GM factory document — 2026 cadillac xt5 fleet order guide, p.19.

XT6 — C1XX (2020–2025)

2025 Factory-verified

Luxury: S

GM factory document — 2025 cadillac xt6 fleet order guide, p.1.
GM factory document — 2025 cadillac xt6 fleet order guide, p.65.

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