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Attention! This interface will work with models that are either non-amplified, or amplified.
Please follow the instructions carefully for your model vehicle. Failure to do so will result in
either no sound, or low sound. If you are unsure if your vehicle is factory amplified or not, please
contact your local dealership.
For models without an amplifier:
From the 16-pin harness with stripped leads to the aftermarket radio:
• Connect the Red wire to the accessory wire.
• If the aftermarket radio has an illumination wire, connect the Orange/White wire to it.
Attention! The following (4) wires are reversed on purpose. These wires will not match "color
code" to the aftermarket radio.
• Connect the Gray wire to the right rear positive speaker output.
• Connect the Gray/Black wire to the right rear negative speaker output.
• Connect the White wire to the left rear positive speaker output.
• Connect the White/Black wire to the left rear negative speaker output.
The following (3) wires are only for multimedia/navigation radios that require these wires.
• Connect the Blue/Pink wire to the VSS/speed sense wire.
• Connect the Green/Purple wire to the reverse wire.
• Connect the Light Green wire to the parking brake wire
• Tape off and disregard the following (6) wires, they will not be used in this application:
Blue/White, Brown, Green, Green/Black, Purple and Purple/Black.
CONNECTIONS TO BE MADE
From the LD-BX-CH3 OR LD-BX-CH4 harness to the aftermarket radio:
• Connect the Black wire to the ground wire.
• Connect the Yellow wire to the battery wire.
• Depending on which harness is used, connect either the Blue or Blue/White wire, to the
• Ensure the (2) 4-pin Molex connectors are connected together.
• Connect the 4-pin harness with stripped leads, to the 4-pin Molex connector on the gray
Attention! The following (4) wires are reversed on purpose. These wires will not match "color
code" to the aftermarket radio.
• Connect the Green wire to the right front positive speaker output.
• Connect the Green/Black wire to the right front negative speaker output.
• Connect the Purple wire to the left front positive speaker output.
• Connect the Purple/Black wire to the left front negative speaker output.
power antenna wire.
22-pin connector which is loose.
Continue to 3.5mm jack steering wheel control retention
REV. 7/25/2018 INSTAX-CH013-SWC
3
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