*Important: Before beginning any
of the following, disconnect the
negative battery terminal to prevent
an accidental short circuit.
Interface Components
• A) Interface • B) Harness
A
B
Tools required for installation
• Cutting Tool • Tape • Crimping Tool • Connectors (I.E. butt-connectors, bell caps, ECT...)
• Female Spade Connectors (Optional)
Interface Installation
The included interface with this kit is
designed to retain Onstar, and retain
factory warning chimes, and keep the
factory climate display active. It also
provides a 12-volt accessory output,
mute, park brake, speed signal and
reverse output.
99-2022B
1. From the 16-way harness:
• Connect the red wire to the
ignition/accessory wire of the
aftermarket radio
• Connect the Orange/White
wire to the illumination wire
of the aftermarket radio. If
the aftermarket radio has no
illumination wire just tape off the
Orange/White wire.
• Connect the blue/white wire
to the amp turn on wire of the
aftermarket radio.
• Connect the white wire to the left
front positive speaker output of the
aftermarket radio
• Connect the white/black wire to
the left front negative speaker
output of the aftermarket radio
• Connect the gray wire to the right
front positive speaker output of the
aftermarket radio
5
• Connect the gray/black wire to the
right front negative speaker output
of the aftermarket radio
• Connect the green wire to the left
rear positive speaker output of the
aftermarket radio
• Connect the green/black wire
to the left rear negative speaker
output of the aftermarket radio
• Connect the purple wire to the
right rear positive speaker output
of the aftermarket radio
• Connect the purple/black wire to
the right rear negative output of
the aftermarket radio
• Connect the Brown wire to the
mute wire of the aftermarket radio.
If the aftermarket radio does not
have a Mute wire, tape up the
Brown wire.
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