INSTALLATION INSTRUCTIONS FOR PART 99-8204
APPLICATIONS
2003-2008 Toyota Corolla
99-8204
KIT FEATURES
• DDIN Head Unit Provision with Pocket
• ISO DIN Head Unit Provision with Pocket
KIT COMPONENTS
A) Radio Housing • B) Pocket • C) Trimplate • D) Mounting Brackets • E) ISO Brackets • F) Rear Support Bracket
G) (8) #8x3/8” Phillips Flat Head Screws • H) (4) #8x3/8” Phillips Pan Head Screws
C
A
D
B
F
G
H
E
TOOLS REQUIRED:
Socket Wrench • Phillips Screwdriver
1-800-221-0932
© COPYRIGHT 2004-2007 METRA ELECTRONICS CORPORATION
99-8204
DASH DISASSEMBLY
2003-2008 TOYOTA COROLLA
Disconnect the negative battery terminal to prevent an accidental short circuit. Unsnap the
gear shifter trim bezel and remove. Remove the center climate control knob and (1) Phillips
screw exposed. Unclip the climate control bezel/pocket assembly and remove. Remove (4)
10 mm bolts from the bottom of the factory head unit. Remove the factory head unit/trim
bezel assembly and disconnect the wiring. Unclip the bezel from the head unit and remove
the unit.
1
99-8204
KIT ASSEMBLY
2003-2008 TOYOTA COROLLA
Attach the Pocket to the back of the Radio Housing (by holding the Housing upside-down,
inserting the right edge of the Pocket into place and pushing the rest of the Pocket onto the
lip) and mount with (2) #8 x 3/8" Phillips Pan-head Screws supplied. Secure the
Mounting Brackets to the Pocket with (8) #6 x 1/4" Phillip Flat-head Screws supplied.
Mount the Rear Support Bracket to the back of the Pocket with (2) #8 x 3/8" Phillips
Pan-head Screws supplied.
2
99-8204
KIT ASSEMBLY
DIN HEAD UNIT PROVISION
A
Slide the DIN cage into the Radio Housing
1
and secure by bending the metal locking
tabs down. Slide the aftermarket head
unit into the cage and secure.
ISO DIN HEAD UNIT PROVISION
B1
B2
B3
Align the holes in the ISO Brackets mount
the Brackets to the head unit with the
screws supplied with the unit. Slide the
head unit/bracket assembly into the radio
opening until the side clips engage and
snap the Trimplate over the unit.
(See Fig. B1)
1
NOTE: To remove the mounted head unit,
unclip and remove the ISO Trimplate.
Using a small flat-blade screwdriver, dis-
engage the side clips securing the ISO
Brackets to the Radio Housing.
(See Fig. B2)
2
Re-connect the battery terminal and test
the unit for proper operation. Snap the
factory head unit trim bezel over the kit by
engaging the (4) bracket tabs ("A") and
(3) Housing bosses ("B") to the back of
the bezel. Slide the assembly into the sub-
dash and mount with (4) 10 mm bolts pre-
viously removed in step #1. Re-assemble
the dash. (See Fig. B3)
"A"
"B"
3
99-8204
FINAL ASSEMBLY
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 Black a wire is not present, ground radio to vehicle chassis.
All colors may not be present on all leads due to manufacturer’s specifications.
4
99-8204
NOTES
5
99-8204 INSTRUCTIONS
1-800-221-0932
© COPYRIGHT 2004-2007 METRA ELECTRONICS CORPORATION
INST99-8204
REV. 10/02/07
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