INSTALLATION INSTRUCTIONS FOR PART 99-3051
APPLICATIONS
Chevrolet Corvette
1990-1996
99-3051
KIT FEATURES
• ISO mount Radio Provision with Pocket
• Two ISO Mount Unit’s Provision
• Double DIN Radio Provision
KIT COMPONENTS
( A) Pocket • ( B) Brackets • ( C) Trim Plate • ( D) (4) #6 X 1/4” Phillips Head Screws • (E) (2) #8 X 3/8” Phillips Head Screws
D
A
B
C
WIRING AND ANTENNA CONNECTIONS (Sold Separately)
E
Wiring Harness:
• 70-1856 - 17ft bypass harness (Non-Bose) 1989-1996
• 70-1857 - 17ft bypass harness (Bose) 1989-1996
Antenna Adapter:
• Not required
TOOLS REQUIRED:
Phillips Screwdriver • Rotary Cutting Tool
1-800-221-0932
© COPYRIGHT 2004-2009 METRA ELECTRONICS CORPORATION
DASH DISASSEMBLY
99-3051
1990-1996 CHEVROLET CORVETTE
A
Disconnect the negative battery
1
terminal to prevent an accidental
short circuit.
2
3
4
Remove (2) screws from center AC
vent and remove vent. (Figure A)
Remove rubber inserts in cup hold-
ers and remove screw. (Figure B)
Remove (2) screws from under carpet
inside center console.
B
Set parking brake and place shifter
into the drive position.
5
6
7
Lift the center console up and slide
back. (Figure C)
Remove (3) screws from radio/clim-
ate control trim panel and remove
panel. (Figure C)
C
Remove (2) screws from side trim
panels to gain access to radio
screws and remove (4) screws
securing radio, unplug and remove
radio.
8
1
DASH DISASSEMBLY
99-3051
1990-1996 CHEVROLET CORVETTE
Cut and remove obstruction from
9
rear of radio cavity. (Figure D)
D
CUT OUT
2
KIT ASSEMBLY
99-3051
1990-1996 CHEVROLET CORVETTE
ISO MOUNT RADIO WITH POCKET
A
Mount the pocket trim-plate to the
pocket using the (2) #8x3/8” Phillips
head screws provided with kit.
Larger lip towards top of pocket.
(Figure A)
1
Align the mounting holes in the
brackets with the mounting holes in
the side of the radio and mount the
brackets to the radio using screws
2
3
B
provided with the radio. (Figure B)
Align the mounting holes in the brack-
ets below the radio with the mounting
holes in the pocket and mount the
pocket to the brackets using the (4)
#6x1/4” Phillips head screws provided
with the kit. (Figure C)
Continue to final assembly.
4
C
3
KIT ASSEMBLY
99-3051
1990-1996 CHEVROLET CORVETTE
DOUBLE DIN RADIO PROVISION
A
Align the mounting holes in the left
bracket with the mounting holes in
the left side of the radio and mount
the bracket to the radio using
screws provided with the radio.
(Figure A)
1
Repeat step one with the right
2
bracket on the right side of the radio.
Continue to final assembly.
3
TWO ISO MOUNT UNITS
A
Align the mounting holes in the left
bracket with the mounting holes in the
left side of both units and mount the
bracket to both units using screws
provided with the units. (Figure A)
1
Repeat step one with the right bracket
on the right side of the units.
2
3
Continue to final assembly.
4
FINAL ASSEMBLY
99-3051
FINAL ASSEMBLY
Locate the factory wiring harness in the dash and make the connection as shown.
Metra recomends using the proper mating adapter and making the connections as
shown. (Isolate and individually tape off the ends of any unused wires to prevent
electrical short circuit.)
1
Re-connect the negative battery terminal and test the unit for proper operation.
Reassemble radio and dash assemblies in reverse order of disassembly.
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.
A
A)
B)
C)
D)
Strip wire ends back 1/2"
Twist ends together
Solder
B
C
D
Tape
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.
5
INST993051
1-800-221-0932
REV. 06/05/09
© COPYRIGHT 2004-2009 METRA ELECTRONICS CORPORATION
INST99-3051
|