Metra Electronics 99-3010S Installation Instructions Manual page 6

Axxess Interface
Installation
From the 16-pin harness:
• Connect the Red wires 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, tape off the Orange/
White wire.
• Connect the Blue/White wire
to the amp turn on wire of the
aftermarket radio (Note, wire must be
connected even if there isn't an AMP
in the vehicle).
• 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 (Note, if the Mute wire is not
connected the radio will turn off when
OnStar is active).
• 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.
• Connect the Gray/Black wire to the
right front negative speaker output of
the aftermarket radio.
• The Violet wire is not used in
the application.
• The Violet/Black wire is not used in
the application.
• The Green wire is not used
in the application.
• The Green/Black wire is not used in
this application.
The following wires are for the
aftermarket radios that have
navigation built in:
• Connect the Light Green wire to the
99-3010S
parking brake wire of the aftermarket
navigation radio.
• Connect the Blue/Pink wire to the VSS
or speed sense wire of the aftermarket
navigation radio.
• Connect the Green/Purple wire to
the reverse wire of the aftermarket
navigation radio.
From the 44-way harness:
• Connect the Black wire to the ground
wire of the aftermarket radio.
• Connect the Yellow wire to the 12-volt
constant wire of the aftermarket radio.
• Connect the Pink wire to the other
Pink wire located on the 18-pin to
10-pin HVAC harness (ignore writing
on wire--this is NOT a "mute" wire).
• Connect the RCA's to the AUX in on the
aftermarket radio (if equipped).
Note: • This will allow you to retain the
3.5 AUX jack in the console.
• The 3.5 AUX jack can only be
used if it is a single AUX jack.
• If the AUX jack has a USB port
neither can be used.
6
For amplified vehicles:
• Connect the Violet wire to the
right rear positive wire of the
aftermarket radio.
• Connect the Violet/Black wire to
the right rear negative wire of the
aftermarket radio.
• Connect the Green wire to the left rear
positive wire of the aftermarket radio.
• Connect the Green/Black wire to
the left rear negative wire of the
aftermarket radio.
For non-amplified vehicles:
• Cut the resistors from the Green,
Green/black, Purple, Purple/Black
right below the heat shrink.
• Connect the Violet wire to
the right rear positive wire of the
aftermarket radio.
• Connect the Violet/Black wire to
the right rear negative wire of the
aftermarket radio.
• Connect the Green wire to the left rear
positive wire of the aftermarket radio.