Connections to be made
• The 3.5mm jack is to be used to retain steering wheel controls.
• For the radios listed below, connect the included female 3.5mm adapter
with Brown and Brown/White wires, onto the male 3.5mm SWC jack of the
BX-CH4. Any remaining wires, tape off and disregard:
• Eclipse: Connect the steering wheel control wire, normally Brown,
to the Brown/White wire of the adapter. Then connect the remaining
steering wheel control wire, normally Brown/White, to the Brown wire
of the adapter.
• Metra OE: Connect the steering wheel control Key 1 wire (Gray) to the
Brown wire.
• Kenwood or select JVC with a steering wheel control wire:
Connect the Blue/Yellow wire to the Brown wire.
Note: If your Kenwood radio auto detects as a JVC, manually set the
radio type to Kenwood. See the instructions under changing radio type.
• XITE: Connect the steering wheel control SWC-2 wire from the radio to
the Brown wire.
• Parrot Asteroid Smart or Tablet: Connect the 3.5mm jack into the
AX-SWC-PARROT (sold separately), and then connect the 4-pin
connector from the AX-SWC-PARROT into the radio.
Note: The radio must be updated to rev. 2.1.4 or higher software.
• For all other radios: Connect the 3.5mm jack of the BX-CH4 into the jack
on the aftermarket radio designated for an external steering wheel control
interface. Please refer to the aftermarket radios manual if in doubt as to
where the 3.5mm jack goes to.
BX-CH4
Installing the BX-CH4
With the key in the off position:
• Connect the 16-pin harness with stripped leads, and the BX-CH4 harness,
into the interface.
• Connect the BX-CH4 harness into the vehicle.
• With all connections completed, reconnect the negative battery terminal.
Note: If retaining steering wheel controls, ensure the jack/wire is connected
before proceeding to the next step.
Initializing the BX-CH4
• Turn the key to ignition, the L.E.D. inside the interface by the 16-pin harness
will turn on solid Red.
• After 30 seconds the L.E.D. will turn off for a few seconds, and then flash up
to 16 times depending on what radio it sees connected to it, and then turn off
again. Refer to the L.E.D. feedback section for more information.
Note: If the L.E.D. does not turn off, it is not communicating to the vehicle.
Turn the key off, check all connections, and then try again.
Adjusting the BX-CH4
Audio level adjustment (factory amplified models only):
• With the vehicle and radio turned on, turn the volume up 3/4 of the way.
• With a small screwdriver, adjust the potentiometer clockwise to raise the audio
level; counterclockwise to lower the audio level.
• Once at a desired level, your audio level adjustment is complete.
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