Connections to be made
From the 6522 harness to the aftermarket radio:
(a) to the 18-pin harness:
• Tape off and disregard the Purple, Purple/Black, Green, and Green/Black wires,
they will not be used in this application.
• Disregard the Yellow RCA jack labeled (1), it will not be used in this application.
• Connect the Yellow RCA jack labeled (2) to either an aftermarket backup camera, or an
AUX video input. Note: This is optional if you desire to have the backup camera or AUX
video image on the factory screen. If you prefer to have the image on the aftermarket
radio instead, connect the backup camera or AUX video to the aftermarket radio.
(b) to the 22-pin harness:
• Connect the Black wire to the ground wire.
• Connect the Yellow wire to the battery wire.
• Connect the White wire to the left front positive speaker output
• Connect the White/Black wire to the left front negative speaker output
• Connect the Gray wire to the right front positive speaker output
• Connect the Gray/Black wire to the right front negative speaker output
• Connect the Green wire to the left rear positive speaker output.
• Connect the Green/Black wire to the left rear negative speaker output.
• Connect the Purple wire to the right rear positive speaker output.
• Connect the Purple/Black wire to the right rear negative speaker output.
99-6525
Installing the Interface
With the key in the off position
• Connect the 16-pin harness with stripped leads into the interface.
• Connect the 6525 harness into the interface, and then into the vehicle.
• Connect the climate extension cable into the connector behind the radio trim panel with
climate controls, and then into the vehicle. Note: This harness must be connected for the
climate controls to function.
• Connect the white round cable removed from the radio chassis in dash
disassembly, into the Axxess interface. Note: If this is not connected, the factory
display screen will not function.
Final assembly
1. Locate the factory antenna connector in the dash, and complete all necessary connections
to the radio. Metra recommends using the proper mating adapter from Metra. Re-connect
the negative battery terminal. Note: If using the ASWC-1 (sold separately), connect it after
you program and test the 99-6525, with the key in the off position.
2. Before using the kit it must be initialized. Initialize the kit by turning the ignition on for
30 seconds, then turn the ignition back off, then back on again. Note: If the 99-6525
loses power for any reason, this step will need to be performed again.
3. Test the radio and climate controls for proper operation.
4. Mount the completed assembly into the dash using the 99-6525 radio trim panel with
climate controls, and then reassemble the dash in reverse order of disassembly.
Note: The potentiometer which is located on the 16-pin harness side of the interface is
for future applications.
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