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ConneCtions to be made
For models with a factory amplifier:
• Connect the White wire to the left rear positive speaker output.
• Connect the White/black wire to the left rear negative speaker output.
• 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 Green wire to the left front positive speaker output.
• Connect the Green/black wire to the left front negative speaker output.
• Connect the Purple wire to the right front positive speaker output.
• Connect the Purple/black wire to the right front negative speaker output.
(b) 12-pin harness to the aftermarket radio:
• Connect the red wire to the accessory wire.
• Connect the blue/White wire to the amp turn on wire.
Note: This wire must be connected to hear sound from the factory amplifier.
• Connect the orange wire to the illumination wire (if applicable).
The following wires are for aftermarket multimedia/navigation radios that
provide these wires (if not required, tape them off and disregard them)
• Connect the light Green wire to the parking brake wire (if applicable).
• Connect the blue/Pink wire to the VSS/speed sense wire (if applicable).
• Connect the Green/Purple wire to the reverse wire (if applicable).
(c) 12-pin harness to the aftermarket radio (asWC-1 pre-wired harness):
• This harness is to be used in conjunction with the optional ASWC-1 (not
included) to retain steering wheel controls. If the ASWC-1 is not being
used, disregard this harness. If it will be used, please refer to the
ASWC-1 instructions for radio connections and programming.
Note: Disregard the harness that comes with the ASWC-1.
METRA. The World's best kits.™
BX-CH12
With the key in the off position
• Connect the 12-pin harness into the interface.
• Connect the 22-pin harness into the vehicle.
• With all connections completed, reconnect the negative battery terminal.
Note: If using the ASWC-1, connect it after you initialize and test the BX-
CH12, with the key in the off position.
attention: If the BX-CH12 loses power for any reason, the following step will
need to be performed again.
• Initialize the interface by turning the ignition on for 30 seconds, then turn
the ignition back off, then back on again.
imPortant WarninG
This product includes instructions for installation which must be carefully followed. The
instructions are worded in such a manner to assume that the installer is capable of
completing these type of electronic installations. If you are unclear as to what you are
instructed to do or believe that you do not understand the instructions so as to properly
and safely complete the installation you should consult a technician who does have this
knowledge and understanding.
Failure to follow these instructions carefully and to install the interface as described
could cause harm to the vehicle or to safety systems on the vehicle. interference with
certain safety systems could cause harm to persons as well. if you have any questions
in this regard please call the Help line or metra at 1-800-221-0932 for assistance.
K
NOWLEDGE IS
Enhance your installation and fabrication skills by
enrolling in the most recognized and respected
mobile electronics school in our industry.
Log onto www.installerinstitute.com or call
800-354-6782 for more information and take steps
toward a better tomorrow.
metraonline.com
installinG tHe bX-CH12
initializinG tHe bX-CH12
P
OWER
Metra recommends MECP
certified technicians
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