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Plug the clear 10 way and 12 way connectors into the back of the 99-3303 housing.
2
FINAL ASSEMBLY
A
A) Strip wire ends back 1/2"
B) Twist ends together
C) Solder
D) Tape
B
C
D
99-3303
FINAL ASSEMBLY
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.
12V Ignition / Acc . . . Red
12V Batt / Memory . . Yellow
Ground . . . . . . . . . . . Black*
Power Antenna . . . . . Blue
Amp Turn-On . . . . . . Blue / White
Amp Ground . . . . . . . Black / White
Illumination. . . . . . . . Orange
Dimmer . . . . . . . . . . Orange / White
Right Front (+) . . . . . Gray
Right Front (-) . . . . . . Gray / Black
Left Front (+) . . . . . . White
Left Front (-) . . . . . . . White / Black
Right Rear (+). . . . . . Violet
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.
METRA / EIA WIRING CODE
Connect the Lt. Blue 24 way connector to the factory 24 way harness.
On vehicles equipped with Onstar, connect the Black 12 way connector to the factory
12 way harness.
Re-connect the negative battery terminal and test the unit for proper operation.
Reassemble dash in reverse order of disassembly.
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All connections should be made without the harness plugged into the 99-3303.