Metra Electronics 99-3400 User manual

APPLICATIONS
INSTALLATION INSTRUCTIONS FOR PART 99-3400
WIRING & ANTENNA CONNECTIONS (sold separately)
Wiring Harness:
• 70-1761 - Toyota/Scion harness for select 1987-2007
• 70-1782 - Geo/Chevrolet/Honda/Isuzu harness
for select 1985-1999
Antenna Adapter:
• Not required
• Phillips screwdriver • Cutting tool
TOOLS REQUIRED
• A) Radio housing • B) Spacer • C) Bracket set 1 • D) Bracket set 2 • E) (4) Speed clips
• F) (6) #6 Phillips screws • G) (4) #8 Phillips screws • H) (2) Phillips screws • I) Equalizer dummy plate
KIT FEATURES
KIT COMPONENTS
B CA
• 2-Shaft head unit provision
• DIN head unit provision
Chevrolet/Geo/Honda/Isuzu 1985-1995
99-3400/AW-407GO/DW-3400
See application list inside
D
E F
G H
I

99-3400
Applications
Chevrolet
Spectrum 1985-1989
Geo
Prizm 1989-1992
Spectrum 1989
Strom 1990-1993
(discarding factory pocket)
Strom 1990-1993
(keeping factory pocket)
Honda
Passport 1994-1995
Isuzu
Amigo 1991-1994
I-Mark 1985-1991
Impulse 1990-1993
(discarding factory pocket)
Impulse 1990-1993
(keeping factory pocket)
(Isuzu continued)
Pickup 1988-1995
Rodeo 1992-1995
Stylus 1990-1991
(discarding factory pocket)
Stylus 1990-1991
(keeping factory pocket)
Trooper 1998-1991

Dash Disassembly 99-3400
Chevrolet Spectrum 1985-1989
Geo Spectrum 1989
1. Remove (2) Phillips screws securing
the radio trim bezel to the bottom of the
dash and remove the bezel. (Figure A)
2. Remove (2) screws securing the
factory head unit to the sub-dash and
disconnect the wiring.
3. Cut and remove all mounting tabs on
brackets set #2 except tabs “A”.
(Figure B)
4. Identify mounting tabs by the stamped
letter on the back of each tab.
5. Using the v-cut as a guide cut
and remove the bottom portion of the
radio housing.
6. Mount the converted brackets to
the housing with (4) #6 Phillips
screws supplied. (Figure C)
Continue to kit assembly
(Figure A)
(Figure C)
(Figure B)
“A”
“A”

Geo Prizm
1989-1992
1. Remove (1) screw from each side of the
steering column.
2. Unclip the dash trim bezel and
disconnect the cigarette lighter and
illumination wiring. (Figure A)
3. Remove (4) screws securing the factory
head unit and disconnect the wiring.
4. Locate bracket set #1. (Figure B)
5. Mount the brackets to the radio housing
with (6) #6 Phillips screws supplied.
(Figure C)
Continue to kit assembly
(Figure A)
(Figure C)
(Figure B)
Dash Disassembly 99-3400

Geo Storm/Isuzu Impulse 1990-1993
Isuzu Stylus 1991-1993
(use if NOT keeping factory pocket)
1. Remove the ashtray and the (2)
outermost screws exposed in the
ashtray cavity. (Figure A)
2. Remove (2) screws from each side of
the dash console. (Figure A)
3. Remove the climate control knobs.
Unclip the radio trim bezel.
4. Remove (4) screws from the metal
console support.
5. Remove the factory head unit assembly
and disconnect the wiring.
6. Remove (4) screws securing the factory
pacer plate to the radio brackets and
remove the plate.
7. Cut and remove all mounting tabs
on brackets set #2 except tabs “C”.
(Figure B)
8. Mount the converted brackets to the
radio housing with (6) #6 Phillips
screws supplied.
9. Slide the factory spacer plate onto the
brackets and mount through holes “A”
with the (2) supplied Phillips. (Figure C)
Continue to kit assembly
(Figure A)
(Figure C)
(Figure B)
Dash Disassembly 99-3400
“C”
“C”
“C”
“C”
“A”
“A”

Geo Storm/Isuzu Impulse 1990-1993
Isuzu Stylus 1991-1993
(use if keeping factory pocket)
1. Remove the ashtray and the (2)
outermost screws exposed in the
ashtray cavity. Remove (2) screws from
each side of the dash console. Remove
the climate control knobs. Unclip the
radio trim bezel. (Figure A)
2. Remove (4) screws from the metal
console support.
3. Remove the factory head unit assembly
and disconnect the wiring.
4. Remove (4) screws securing the factory
spacer plate to the radio brackets and
remove the plate.
5. Cut and remove all mounting tabs
on brackets set #2 except tabs “C”.
(Figure B)
6. Using the v-cut as a guide cut and remove
the bottom portion of the radio housing.
7. Mount the brackets to the housing with
(4) #6 Phillips screws supplied.
8. Mount the factory pocket to the
brackets through holes “A” with (4)
#8 Phillips screws supplied (it may be
necessary to trim the top and bottom
edges of the pocket for a proper fit).
(Figure C)
9. Slide the factory spacer plate onto the
brackets and mount through holes “B”
with (2) Phillips screws and (2) speed
clips supplied. (Figure C)
Continue to kit assembly
(Figure A)
(Figure C)
(Figure B)
Dash Disassembly 99-3400
“C”
“C”
“C”
“C”
“A”
“A”
“B”
“B”

Dash Disassembly 99-3400
Honda Passport 1994-1995
Isuzu Amigo 1991-1994/Pickup 1988-1995
Rodeo 1992-1995/Trooper 1988-1991
1. Remove (2) Phillips screws from
the base of the radio trim bezel and
remove the bezel. (Figure A)
2. Remove (3) hex head bolts securing the
factory head unit and disconnect the
wiring.
3. Cut and remove all mounting tabs
on brackets set #2 except tabs “B”.
(Figure B)
4. The mounting tabs can be identified
by the stamped letter on the back of
each tab.
5. Using the v-cut as a guide, cut
and remove the bottom portion of
the radio housing.
6. Mount the converted brackets
to the housing with (4) #6 Phillips
screws supplied. (Figure C)
Continue to kit assembly
(Figure A)
(Figure C)
(Figure B)
“B”
“B”

Isuzu I-Mark
1985-1991
1. Remove (2) Phillips screws from
each side of the dash trim bezel and
remove the bezel.
2. Remove (4) Phillips screws securing
the bracket assembly. (Figure A)
3. Remove the factory head unit and
disconnect the wiring.
4. Cut and remove all mounting tabs
on brackets set #2 EXCEPT tabs “A”.
(Figure B)
5. The mounting tabs can be identified
by the stamped letter on the back of
each tab.
6. Using the v-cut as a guide, cut
and remove the bottom portion of the
radio housing.
7. Mount the converted brackets
to the housing with (4) #6 Phillips
screws supplied. (Figure C)
Continue to kit assembly
(Figure A)
(Figure C)
(Figure B)
Dash Disassembly 99-3400
“A”
“A”

Kit Assembly 99-3400
1. Attach the spacer to the radio housing.
2. Slide the aftermarket head unit into the
kit and secure with shaft nuts.
(Figure A)
3. Locate the factory wiring harness in the
dash. Metra recommends using the
proper mating adapter from Metra or
AXXESS. Re-connect the negative
battery terminal and test the unit for
proper operation.
4. Reassemble dash in reverse order
of disassembly. (Figure B)
2-Shaft head unit provision
(Figure A)
(Figure B)
Optional

Kit Assembly 99-3400
DIN head unit provision
1. Cut and remove the shaft supports from
the spacer and radio housing.
2. Slide the DIN cage into the kit and
secure by bending the metal locking
tabs down. (Figure A)
3. Slide the aftermarket head unit into the
cage until secure. (Figure A)
(If an equalizer will be included, slide
the unit into the back of the radio
housing and secure. If an equalizer will
not be included, snap the equalizer
dummy plate into the opening).
4. Locate the factory wiring harness in the
dash. Metra recommends using the
proper mating adapter from Metra or
AXXESS. Re-connect the negative
battery terminal and test the unit for
proper operation.
5. Reassemble dash in reverse order
of disassembly. (Figure B)
(Figure A)
(Figure B)
Optional