INSTALLATION INSTRUCTIONS FOR PART 99-3000
APPLICATIONS
CHEVROLET:
BLAZER 92-94/PICKUP 88-94/SUBURBAN 92-94
GMC:
C-SERIES 88-94/SUBURBAN 92-94/YUKON 92-94
99-3000
AW-333GM/DW-3000/CK-333GM
99-3000
KIT FEATURES
• DIN Mount Radio Provision
• ISO Mount Radio Provision
KIT COMPONENTS
A) Radio Housing • B) ISO Brackets
B
A
TOOLS REQUIRED:
Small Flat Blade Screwdriver/ Panel Removal Tool
• Phillips Screwdriver
1-800-221-0932
© COPYRIGHT 2004-2008 METRA ELECTRONICS CORPORATION
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99-3000 DASH DISASSEMBLY
CHEVROLET:
CHEVROLET:
B
B
L
L
A
A
Z
Z
ER
ER
92
92
-
-
9
9
4
4
/
/
P
P
I
I
C
C
K
K
U
U
P
P
88-94
88-94
S
S
U
U
B
B
U
U
R
R
B
B
A
A
N
N
92-94
92-94
GMC:
GMC:
C-
C-
S
S
ER
ER
I
I
ES
ES
88
88
-9
-9
4
4
/S
/S
U
U
B
B
U
U
R
R
B
B
A
A
N
N
92-94
92-94
Y
Y
U
U
K
K
O
O
N
N
92-94
92-94
1
2
3
Disconnect the negative battery ter-
minal to prevent an accidental short
circuit.
A
Pull out on the bottom of the radio
trim bezel. Unhook the top corners of
the bezel and remove. (Figure A)
Remove the metal fastening clips
from the bottom of the factory dash
panel and attach them to the same
location on the Replacement Dash
Panel. (Rear inside corner view
shown) (Figure B)
Continue to kit assembly.
B
1
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99-3000 KIT PREPARATION
CHEVROLET:
CHEVROLET:
B
B
L
L
A
A
Z
Z
ER
ER
92
92
-
-
9
9
4
4
/
/
P
P
I
I
C
C
K
K
U
U
P
P
88-94
88-94
S
S
U
U
B
B
U
U
R
R
B
B
A
A
N
N
92-94
92-94
GMC:
GMC:
C-
C-
S
S
ER
ER
I
I
ES
ES
88
88
-9
-9
4
4
/S
/S
U
U
B
B
U
U
R
R
B
B
A
A
N
N
92-94
92-94
Y
Y
U
U
K
K
O
O
N
N
92-94
92-94
1
Remove the a/c vents from the fac-
tory dash panel by releasing the
A
spring fastening clips securing them
to the panel. Mount the vents to the
Replacement Dash Panel by insert-
ing the inner edge of the vent into
the center inside pivot hole and the
outer edge of the vent into the outer
pivot hole. Using the same metal
spring clips and mounting proce-
dures from the original truck panel
to mount the vents to the
Replacement Dash Panel. (Figure A)
Continue to kit assembly.
2
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99-3000 KIT ASSEMBLY
CHEVROLET:
CHEVROLET:
BL
BL
AZ
AZ
ER
ER
9
9
2
2
-9
-9
4
4
/
/
P
P
I
I
CK
CK
UP
UP
88-94
88-94
S
S
U
U
B
B
U
U
R
R
BA
BA
N
N
92-94
92-94
GMC:
GMC:
C
C
-S
-S
E
E
R
R
I
I
E
E
S
S
8
8
8
8
-
-
94
94
/S
/S
UB
UB
UR
UR
BA
BA
N
N
92-94
92-94
Y
Y
U
U
K
K
O
O
N
N
92-94
92-94
DIN MOUNT RADIO PROVISION
Note: Refer also to the instructions included with the aftermarket radio.
1
Slide the DIN cage into the radio
housing and secure by bending the
metal locking tabs outward. (Figure A)
A
2
Slide the aftermarket radio into the
cage until it snaps into place.
(Figure A)
Continue to final assembly.
ISO MOUNT RADIO PROVISION
Note: Refer also to the instructions included with the aftermarket radio.
1
Mount the ISO brackets to the radio
using the screws supplied with the
radio.
A
2
Slide the radio into the radio housing
until the ISO brackets snap into place.
(Figure A)
Continue to final assembly.
RIGHT SIDE CLIP
3
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99-3000 FINAL ASSEMBLY
FINAL ASSEMBLY
A
B
(A) Strip wire ends back 1/2"
B) Twist ends together
C) Solder
D) Tape
C
D
Locate the factory wiring harness in the dash. Metra recommends using the
proper mating adapter and making connections as shown. (Isolate and individ-
ually tape off the ends of any unused wires to prevent electrical short circuit.)
1
2
3
Re-connect the negative battery terminal and test the unit for proper operation.
Reassemble radio and dash assemblies in reverse order of disassembly.
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
Right Front (+) . . . . . . . . . . . . Gray
12V Batt / Memory. . . . . . . . . Yellow
Ground. . . . . . . . . . . . . . . . . . Black*
Power Antenna. . . . . . . . . . . . Blue
Right Front (-). . . . . . . . . . . . . Gray/ Black
Left Front (+) . . . . . . . . . . . . . White
Left Front (-). . . . . . . . . . . . . . White / Black
Right Rear (+) . . . . . . . . . . . . Violet
Amp Turn-On . . . . . . . . . . . . . Blue / White
Amp Ground. . . . . . . . . . . . . . Black / White
Illumination . . . . . . . . . . . . . . Orange
Dimmer . . . . . . . . . . . . . . . . . Orange / White
Right Rear (-) . . . . . . . . . . . . . Violet / Black
Left Rear (+) . . . . . . . . . . . . . Green
Left Rear (-) . . . . . . . . . . . . . . Green / Black
*NOTE: When a Black wire is not present, ground radio to vehicle chassis.
All colors may not be present on all leads due to manufacturer’s specifications.
4
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99-3000
NOTES
5
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99-3000 INSTRUCTIONS
1-800-221-0932
REV. 03/25/08 © COPYRIGHT 2004-2008 METRA ELECTRONICS CORPORATION INST99-3000
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