GM codes - not necessarily for a Cruze:
5R9 SPEAKER SYSTEM, RR, DELETE
5Z9 ANTENNA, RADIO, DELETE
8N4 SPEAKER SYSTEM, INSTRUMENT PANEL (COAXIAL)
8N9 SPEAKER, RDO DELETE
9L7 RADIO PROVISIONS, MISC. MOUNTING REQ.
U1A RADIO, AM STEREO-FM STEREO, SEEK/SCAN, COMPACT
U1B RADIO, AM STEREO-FM STEREO SEEK/SCAN COMPACT
U1C RADID, AM/FM STEREO, SEEK/SCAN, COMPACT DISC
U1D RADIO, AM STEREO-FM STEREO-WX, SEEK/SCAN, COMPACT
U1E RADIO, AM STEREO & FM STEREO, SEEK/SCAN COMPACT
U1F RADIO, AM/FM STEREO, SEEK/SCAN, AUTO REV MUSIC
U1G RADIO, AM STEREO/FM STEREO, SEEK/SCAN AUTO REV
U1H RADIO, AM STEREO/FM STEREO, SEEK/SCAN, AUTO REV
U1J RADIO, AM/FM STEREO, SEEK/SCAN, AUTO REV MUSIC
U1K RADIO, AM STEREO-FM STEREO SEEK/SCAN, DAT EQUALIZER
U1L RADIO, AM STEREO & FM STEREO, SEEK/SCAN, AUTO/REV
U1N RADIO, AM STEREO/FM STEREO/WX/TV, SEEK/SCAN, AUTO
U1P RADIO, AM STEREO/FM STEREO/WX/TV, SEEK/SCAN, AUTO
U1R RADIO, AM STEREO/FM STEREO, SEEK/SCAN, AUTO REV
U1S PLAYER, MULTIPLE COMPACT DISC
U1Q RADIO, AM STEREO/FM STEREO/WX/TV, SEEK/SCAN, CD
U1T RADIO, AM/FM STEREO, SEEK/SCAN, COMPACT DISC, HPS
U1S REMOTE COMPACT DISC CHANGER
U1Z PLAYER MULTIPLE COMPACT DISC, PASSENGER COMPARTMENT
U2J XM RADIO DELETE
U56 PLAYER TAPE, CASSETTE
U57 8 TRACK TAPE PLAYER
U58 RADIO, AM/FM STEREO, MTR
U60 RADIO, AM MANUAL TUNING
U62 SPEAKER SYSTEM, DUAL COAXIAL
U63 RADIO, AM, MTR
U64 SPEAKER SYSTEM, 4, DUAL FRT DASH MTD, DUAL STD RGE
U65 SPEAKER SYSTEM, 6, DUAL FRT DASH MTD, F/D, DUAL
U66 SPEAKER SYSTEM, 4, DUAL FRT DASH MTD, DUAL EXTD RGE
U67 SPEAKER SYSTEM, 8, DUAL F/D 2 TWEET, TWO WOOF, DUAL
U68 DISPLAY, DRIVER INFO CENTER
U69 RADIO, AM/FM, MTR
U71 ANTENNA, ROOF , RADIO
U72 ANTENNA, POWER, FRT, RADIO
U73 ANTENNA, FIXED, RADIO
U74 ANTENNA, RADIO ----DELETE
U75 ANTENNA, POWER, RADIO
U76 ANTENNA, WINDSHIELD, RADIO
U77 ANTENNA, RR WINDOW, RADIO
U78 ANTENNA , POWER , RADIO/TELEPHONE TRISAND
U79 SPEAKER SYSTEM, 4, DUAL FRT COAX, DUAL EXT RGE PKG
U80 SPEAKER SYSTEM, RR
U81 SPEAKER SYSTEM, RR, DUAL
U82 SPEAKER SYSTEM, 3, DUAL DR MTD, RR PKG SHELF
U83 ANTENNA, POWER, CITIZENS SAND/RADIO TRIBAND
U85 SPEAKER SYSTEM, 8 QUAD FRT DR MTD, SHELF QUAD
U92 SPEAKER SYSTEM, 9 DUAL F/D PLR TWEET, QUAD F/D
U93 ANTENNA, FIXED TELEPHONE
U95 SPEAKER SYSTEM, DOOR
U96 SPEAKER SYSTEM, 6, DUAL F/D TWEET & WOOF, DUAL
UK4 RADIO, AM/FM STEREO, SEEK/SCAN, ETR
UK5 RADIO, AM/FM STEREO, SEEK/SCAN, AUTO REV CASS, ETR
UK6 RADIO CONTROL RR SEAT AND EARPHONE JACKS
UL0 RADIO – AM/FM STEREO, CASS. (EUROPE COMPLIANT)
UL1 RADIO, AM/FM STEREO CLOCK ETR
UL2 FREQUENCIES, EUROPEAN RADIO
UL3 RADIO, AM/FM STEREO, SEEK/SCAN, AUTO REV MUSIC
UL5 RADIO, DELETE
UL6 RADIO, AM, CLOCK, MTR
UL8 FREQUENCIES, SAUDI ARABIAN RADIO
UL9 RADIO, AM/FM STEREO, SEEK/SCAN, AUTO REV, MUSIC, SEARCH, CASS. CD, AUTO TONE, CLOCK, ETR, BOSE
UM1 RADIO, AM/FM STEREO, AUTO REVERSE CASS, EQUALIZER
UM2 RADIO, AM/FM STEREO, SEEK/SCAN, AUTO REV CASS
UM3 RADIO, AM STEREO-FM STEREO, SEEK/SCAN, COMPACT
UM6 RADIO, AM/FM STEREO, SEEK/SCAN, AUTO REV CASS,
UM7 RADIO, AM/FM STEREO, SEEK/SCAN, CLOCK, ETR (BASE ON ALL MODELS)
UN0 RADIO, AM/FM STEREO, SEEK/SCAN, CD, AUTO TONE, CLOCK AND ETR (RADIO WILL NOT SNAP FIT INTO I/P – NO ATTACHING FASTENERS)
UN1 RADIO, AM/FM STEREO, SEEK/SCAN, COMPACT DISC
UN2 RADIO, AM/FM STEREO, SEEK/SCAN, COMPACT DISC
UN3 RADIO, AM/FM STEREO, CASS, MTR
UN4 TAPE CARTRIDGE ---- DELETE
UN5 RADIO, AM/F4 STEREO, SEEK/SCAN, AUTO REV CASS, CB,
UN6 RADIO, AM/FM STEREO, SEEK/SCAN, AUTO REV MUSIC
UN8 RADIO, CITIZENS BAND
UN9 RADIO, SUPPRESSION EQUIPMENT
UP0 RADIO, AM/FM STEREO, SEEK/SCAN, AUTO REV, MUSIC, SEARCH, CASS, CD, AUTO TONE, CLOCK AND ETR (RADIO WILL NOT SNAP FIT INTO I/P – NO ATTACHING FASTENERS, CD WILL BE REMOTE MOUNTED OTHER THAN THE IP)
UP1 RADIO, AM/FM ETR STEREO WITH AUTO SCAN CASSETTE
UP2 RADIO, AM STEREO & FM STEREO, SEEK/SCAN, CLOCK, ETR, *****
UP3 RADIO, AM/FM STEREO, SEEK/SCAN, COMPACT DISC
UP4 RADIO, AM, ETR
UP5 RADIO, AM STEREO-FM STEREO-WX, SEEK/SCAN, AUTO REV
UP6 RADIO, AM/FM STEREO, SEEK/SCAN, CASSETTE, EQUALIZER
UP7 RADIO PROVISIONS, FOR MONO INSTRUMENTATION
UP8 STEREO RADIO INSTALLMENT PROVISIONS
UP9 RADIO PROVISIONS, FOR STEREO INSTRUMENTATION
UQ0 SPEAKER SYSTEM, 4, DUAL FRT DR MTD, DUAL STD RGE
UQ1 RADIO PROVISIONS, FOR STEREO
UQ2 SPEAKER SYSTEM, 6, DUAL F/D MIR PATCH TWT, DUAL F/D
UQ3 SPEAKER SYSTEM, PERFORMANCE ENHANCED AUDIO
UQ4 SPEAKER SYSTEM, BOSE, 4
UQ5 SPEAKER SYSTEM, 4, DUAL FRT DR MTD, DUAL EXTD RGE
UQ6 SPEAKER SYSTEM, 5, DUAL I/P, SAIL MTD COAX
UQ7 SPEAKER SYSTEM, PREMIUM PERFORMANCE, ENHANCED AUDIO, BOSE
UQ8 SPEAKER SYSTEM, 4, DUAL FRT EXTD RGE, DUAL EXTD RGE
UQ9 SPEAKER SYSTEM, DELETE
US6 ANTENNA, FIXED, PAINTED, RADIO
US7 ANTENNA, POWER, PAINTED, RADIO
US8 RADIO, AM/FM STEREO W/MP3 COMPATIBLE CD PLAYER
UT0 RADIO, AM STEREO/FM STEREO, SEEK/SCAN, AUTO REV
UT2 RADIO, AM/FM STEREO, P3, SEEK/SCAN CLOCK ETR
UT3 RADIO, AM/FM STEREO , SEEK/SCAN, AUTO REV CASS
UT4 RADIO, AM/FM-ST CASS, AUTO NR, TOUCH CONTROL, STEERING WHL
UT5 RADIO, AM, CLOCK, ETR
UT6 RADIO, AM/FM STEREO, SEEK/SCAN, AUTO REV MUSIC
UT7 RADIO, AM/FM STEREO, PB, DOLBY , ETR
UU0 RADIO, AM STEREO & FM STEREO SEEK/SCAN AUTO REV
UU1 RADIO, AM/FM STEREO-FM STEREO-WX,SEEK/SCAN, COMPACT
UU2 RADIO, AM/FM STEREO, CASS, DOLBY, ETR
UU3 RADIO, AM/FM STEREO, SEEK, DATA SYSTEM
UU4 RADIO, AM/FM STEREO, SEEK/SCAN, AUTO REV CASS
UU6 RADIO, AM/FM STEREO, SEEK/SCAN AUTO REV CASS
UU7 RADIO, AM/FM STEREO, CASS, CLOCK ETR
UU8 RADIO, AM/FM STEREO, SEEK/SCAN, AUTO REV MUSIC
UU9 RADIO, AM/FM STEREO, ETR
UUK Audio system w/ Nav; AM/FM/MP3 compatible CD/DVD player
UUL Audio system w/ Nav; AM/FM/MP3 compatible CD player
UUN AM/FM w/ MP3; 6-disc CD player
UV1 ALARM, VOICE REMINDER
UV4 DISPLAY COMPASS AND RALLY TSD INFO
UV8 TELEPHONE, PROVISIONS FOR MOSILE CODE CODE DESCRIPTION
UV9 TELEPHONE, MOBILE 6000 SERIES
UW0 SPEAKER SYSTEM, 4, DUAL I/P MTD, DUAL ROOF MTD
UW1 DIAGNOSTIC SYSTEM
UW2 SPEAKER SYSTEM, 10, QUAD FRT DR MTD, DUAL RR SAIL
UW3 RADIO AM/FM STEREO, SEEK/SCAN, AUTO REV, MUSIC SEARCH CASS, DATA SYSTEM, CLOCK, ETR
UW4 SPEAKER SYSTEM, 6, DUAL FRT DASH MTD F/D, DUAL
UW5 SPEAKER SYSTEM, 6, DUAL I/P MTD, DUAL STD RGE PASS
UW6 SPEAKER SYSTEM, 6, DUAL F/D TWEET & WOOF, DUAL EXT
UW7 RADIO, AM STEREO & FM STEREO SEEK/SCAN AUTO/REV
UX0 SPEAKER SYSTEM, 4, DUAL FLR SILL, DUAL EXT RANGE
UX1 RADIO, AM/FM STEREO, CASSETTE, EQUALIZER
UX6 SPEAKER SYSTEM, FRT DUAL
UX7 SPEAKER SYSTEM, 4, DUAL FRT DR MTD, DL EXTND RGE
UY3 TELEPHONE, MOBILE, S.E. SERIES
UY5 SPEAKER SYSTEM, 4, DUAL FRT FLR SILL, DUAL EXT
UY7 WIRING HARNESS, TRUCK TRAILER HD
UY9 CLUSTER, KILO & MILES, MECHANICAL DISPLAY
UYS Audio system w/ nav; AM/FM/XM with CD player
UZ1 TELEPHONE, PROVISIONS FOR INTEGRATED M0BILE
UZ3 TELEPHONE, MOBILE KEYPAD CONTROL
UZ6 BOSE SPEAKER AND AMPLIFIER SYSTEM
V73 ANTENNA, FIXED