Metra Electronics PDAs Smartphones 99 8156 User Manual

INSTALLATION INSTRUCTIONS FOR PART 99-8156  
APPLICATIONS  
LEXUS LS SERIES  
1990-1994  
99-8156  
KIT FEATURES  
• DIN Mount Radio Provision with Pocket  
• ISO Mount Radio Provision with Pocket  
KIT COMPONENTS  
A) Radio Housing • B) ISO Brackets • C) Radio Housing Brackets • D) Trim Plate  
E) (6) #8 Phillips Screws  
B
C
A
D
E
TOOLS REQUIRED:  
Small Flat Blade Screwdriver/ Panel Removal Tool  
• Phillips Screwdriver • Socket Set  
1-800-221-0932  
© COPYRIGHT 2007 METRA ELECTRONICS CORPORATION  
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99-8156 DASH DISASSEMBLY  
LEXUS LS SERIES 1990-1994  
A
1
Disconnect the negative battery ter-  
minal to prevent an accidental short  
circuit.  
2
3
Carefully pry out and remove ashtray  
assembly below radio. (Figure A)  
Using a panel removal tool or small  
flat blade screwdriver gently pry out  
on the top of the A/C vent assembly  
and remove. (Figure B)  
4
5
Remove (4) screws securing the fac-  
tory radio/climate control assembly.  
Unplug and remove assembly.  
(Figure C)  
B
Remove (4) screws securing the cli-  
mate controls to the assembly and  
remove the climate controls from the  
assembly. (Retain the screws and cli-  
mate controls for re-use during kit  
assembly).  
Continue to kit preparation.  
C
1
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99-8156 KIT PREPARATION  
LEXUS LS SERIES 1990-1994  
DIN MOUNT RADIO PROVISION WITH POCKET  
ISO MOUNT RADIO PROVISION WITH POCKET  
Note: Refer also to the instructions included with the aftermarket radio.  
A
1
2
Attach the corresponding radio hous-  
ing bracket to the radio housing using  
the included Phillips screws. (Figure A)  
Slide the factory climate control into  
the assembled radio housing brack-  
ets/radio housing assembly and  
secure with the factory hardware.  
(Figure B)  
Continue to kit assembly.  
B
2
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99-8156 KIT ASSEMBLY  
LEXUS LS SERIES 1990-1994  
DIN MOUNT RADIO PROVISION WITH POCKET  
Note: Refer also to the instructions included with the aftermarket radio.  
A
1
2
Slide the DIN cage into the Radio  
Housing and secure by bending the  
metal locking tabs down. (Figure A)  
Slide the aftermarket radio into the  
cage until it snaps in place. (Figure B)  
Continue to final assembly.  
B
3
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99-8156 KIT ASSEMBLY  
LEXUS LS SERIES 1990-1994  
ISO MOUNT RADIO PROVISION WITH POCKET  
Note: Refer also to the instructions included with the aftermarket radio.  
A
1
Mount the ISO Brackets to the radio  
using the screws supplied with the  
radio. (Figure A)  
2
3
Slide the radio into the radio housing  
until the side clips engage. (Figure B)  
Snap the Trim plate onto the front of  
the Radio Housing. (Figure B)  
Continue to final assembly.  
B
4
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99-8156 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.  
5
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99-8156 INSTRUCTIONS  
1-800-221-0932  
REV. 12/05/07 © COPYRIGHT 2007 METRA ELECTRONICS CORPORATION INST99-8156  
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