From the 16-pin harness with stripped leads to the aftermarket radio, connect as indicated:
• Red wire to the accessory wire.
Note: If also installing an AXXESS steering wheel control interface (sold separately, there will
be a Red wire on the 6520 harness to connect as well.
• Orange/White wire to the illumination wire, if applicable.
• Blue/White wire to the amp turn-on wire, if equipped with a factory amplifier.
The following (3) wires are for aftermarket multimedia/navigation radios that require these wires:
• Blue/Pink wire to the speed sense wire.
• Green/Purple wire to the reverse wire.
• Light Green wire to the parking brake wire.
Tape off and disregard the following (9) wires, they will not be used in this application:
Brown, White, White/Black, Gray, Gray/Black, Purple, Purple/Black, Green, Green/Black.
From the 6520 harness to the aftermarket radio, connect as indicated:
• Black wire to the ground wire.
• Yellow wire to the battery wire.
• Gray wire to the right front (+) speaker output.
• Gray/Black wire to the right front (-) speaker output.
• White wire to the left front (+) speaker output.
• White/Black wire to the left front (-) speaker output.
• Green wire to the left rear (+) speaker output.
CONNECTIONS
From the 6520 harness continued...
• Green/Black wire to the left rear (-) speaker output.
• Purple wire to the right rear (+) speaker output.
• Purple/Black wire to the right rear (-) speaker output.
• Yellow RCA jack labeled (2) to either an aftermarket backup camera, or an AUX video input.
Disregard the Yellow RCA jack labeled (1), it will not be used in this application.
Note: There is also a set of Green, Green/Black, Violet, Violet/Black wires coming from the
Black 18-pin connector that goes to the interface, tape off and disregard these wires, they will
not be used in this application.
From the 12-pin 6520 harness connector:
• If the vehicle is not equipped with steering wheel controls, disregard this connector entirely.
• If the vehicle has steering wheel controls, the 12-pin 6520 connector is to be used along with
the optional AXXESS steering wheel control interface (sold separately) to retain steering wheel
controls.
• Attach the 12-pin connector from the 6520 harness to the AXXESS steering wheel control
interface (sold separately).
Note: Disregard the harness that comes with the AXXESS steering wheel control interface.
Note: Please verify AXXESS steering wheel control interface connections for your vehicle by
visiting www.axxessinterfaces.com, and using the vehicle fit guide to find a vehicle specific
instruction.
7
REV. 4/19/22 INST99-6520B