INSTALLATION INSTRUCTIONS FOR PART 99-2021
99-2021
APPLICATIONS
BUICK Lacrosse
2005-2009
KIT FEATURES
• DIN Radio Provision with Pocket
• ISO Mount Radio Provision with Pocket
• Double DIN Radio Provision
• Stacked ISO Mount Units Provision
• A) Radio Housing • B) ISO Brackets • C) ISO Trim Plate • D) Double DIN Brackets
• E) Double DIN Trim Plate • F) Pocket
KIT COMPONENTS
A
TOOLS REQUIRED:
Small Flat Blade Screwdriver/ Panel Removal Tool
• Phillips Screwdriver • Socket Set
B
D
E
C
F
WIRING AND ANTENNA CONNECTIONS (Sold Separately)
Wire harness:
• GMOS-01 GM interface 2002-up
• GMOS-04 GM amplified interface 2002-up
Antenna adapter:
• 40-GM10 -GM antenna adapter 1988-up
99-2021 DASH DISASSEMBLY
A
B
C
D
BUICK LACROSSE 2005-2009
Disconnect the negative battery terminal to prevent an accidental short
circuit.
1
Unclip and remove trim panel below
a/c control.
(Figure A)
2
Remove (2) 9/32” screws securing climate controls to the sub dash. Unplug
and remove climate controls.
(Figure B)
3
Unclip trim panel above the radio.
Unplug and remove the panel.
(Figure C)
4
Remove (4) 9/32” screws securing
radio. Unplug and remove radio.
(Figure D)
5
Continue to final assembly.
*
Note: Refer also to the instructions included with the aftermarket radio.
99-2021 KIT ASSEMBLY
A
B
C
DIN MOUNT RADIO PROVISION WITH POCKET
Slide the DIN cage into the radio
housing and secure by bending the
metal locking tabs outward.
(Figure A)
1
Slide the aftermarket radio into the
DIN cage and until it snaps into place.
(Figure B)
2
Snap the pocket into the radio housing.
(Figure C)
3
Continue to final assembly.
*
Note: Refer also to the instructions included with the aftermarket radio.
99-2021 KIT ASSEMBLY
A
B
C
ISO MOUNT RADIO PROVISION WITH POCKET
Mount the ISO Brackets to the radio
using the screws supplied with the
radio.
(Figure A)
1
Slide the radio into the radio housing
until it snaps into place.
(Figure B)
2
Snap the trim plate onto the front of
the Radio Housing.
(Figure B)
3
Snap the Pocket into the radio
housing.
(Figure C)
4
Continue to final assembly.
*
Note: Refer also to the instructions included with the aftermarket radio.
99-2021 KIT ASSEMBLY
DOUBLE DIN RADIO PROVISION
Cut and remove the center bar from
the radio housing.
(Figure A)
1
Snap the Double DIN brackets to the
inside edge of the radio housing.
(Figure B)
2
Slide the Double DIN radio into the
DDIN bracket/radio housing assembly
and secure the radio to the assembly
using the screws supplied with the
radio.
(Figure C)
3
Snap the Double DIN trim plate onto
the front of the radio housing.
(Figure C)
4
Continue to final assembly.
*
Note: Refer also to the instructions included with the aftermarket radio.
A
B
C
99-2021 KIT ASSEMBLY
STACKED ISO MOUNT UNITS PROVISION
Cut and remove the center bar from
the radio housing.
(Figure A)
1
Snap the Double DIN brackets to the
inside edge of the radio housing.
(Figure B)
2
Slide the stacked ISO mount units into
the bracket/trim plate assembly and
secure the units to the assembly using
the screws supplied with the units.
(Figure C)
3
Continue to final assembly.
*
Note: Refer also to the instructions included with the aftermarket radio.
A
B
C
Snap the Double DIN trim plate onto
the front of the radio/housing.
(Figure C)
4
99-2021 FINAL ASSEMBLY
FINAL ASSEMBLY
(A) Strip wire ends back 1/2"
B) Twist ends together
C) Solder
D) Tape
A
B
C
D
Locate the factory wiring harness in the dash. Metra recommends using the
proper mating adapter and making connections as shown. (Isolate and individually tape off the ends of any unused wires to prevent electrical short circuit.)
Re-connect the negative battery terminal and test the unit for proper operation.
Reassemble radio and dash assemblies in reverse order of disassembly.
1
2
3
FINAL WIRING CONNECTIONS
Make wiring connections using the EIA color code chart shown below and the instructions included with the
head unit. Metra recommends making connections as shown below; Strip, Splice, Solder, Tape. Isolate and
individually tape off ends of any unused wires to prevent electrical short circuit.
METRA / EIA WIRING CODE
12V Ignition / Acc. . . . . . . . . . Red
12V Batt / Memory. . . . . . . . . Yellow
Ground. . . . . . . . . . . . . . . . . . Black*
Power Antenna. . . . . . . . . . . . Blue
Amp Turn-On . . . . . . . . . . . . . Blue / White
Amp Ground. . . . . . . . . . . . . . Black / White
Illumination . . . . . . . . . . . . . . Orange
Dimmer . . . . . . . . . . . . . . . . . Orange / White
Right Front (+) . . . . . . . . . . . . Gray
Right Front (-). . . . . . . . . . . . . Gray/ Black
Left Front (+) . . . . . . . . . . . . . White
Left Front (-). . . . . . . . . . . . . . White / Black
Right Rear (+) . . . . . . . . . . . . Violet
Right Rear (-) . . . . . . . . . . . . . Violet / Black
Left Rear (+) . . . . . . . . . . . . . Green
Left Rear (-) . . . . . . . . . . . . . . Green / Black
METRA ACCESSORIES
STEREO DASH KITS
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