HARMONY
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4. PRIMARY WIRE HARNESS & CONNECTIONS
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4.1 Primary Wire Harness
HIGH LEVEL / SPEAKER LEVEL INPUTS
The primary wire harness includes appropriately color-coded 4-channel hi-level signal inputs to connect speaker
level signal from the head unit. If the head unit low-level RCA outputs are equal or greater than 2V RMS, you can
connect it to the high-level inputs. Use the input gain control to appropriately match the input sensitivity to the head
unit output level.
POWER SUPPLY CONNECTIONS
Connect constant 12V+ power to the yellow 12V+ wire and ground to the black GND wire. Be sure the polarity is
as indicated on the wire. A misconnection may result in damage to HARMONY. After applying power, wait at least
10 seconds before turning on.
REMOTE IN / OUT CONNECTIONS
Connect the amplifier turn-on of the head unit or switched/ACC 12V power to the red REM IN wires. Connect the
blue REM OUT wire to the remote turn-on terminal of the amplifier and/or other devices in the system. REM OUT fea-
tures a 2 second delay to eliminate noise pops.
HARMONY must be switched on before any amplifiers are turned
on. The head units amplifier turn-on must be connected to REM IN, and REM OUT should be connected to the
remote turn-on terminal of the amplifier(s) or other devices in the system.
HANDS-FREE BLUETOOTH MODULE INPUT
The primary wire harness also features connections for a hands free Bluetooth module. Connect the audio +/- out-
puts of the hands-free Bluetooth module to the pink color PHONE +/- wires of the primary wire harness. Connect
the mute trigger output of the hands-free Bluetooth module to the orange color PHONE MUTE - wire of the primary
harness. The mute control is activated when the mute trigger receives ground. The PHONE MUTE terminal can also
be used to enable the AUX input. In this case, the PHONE +/- inputs are inactive.
MUTE IN
The outputs of HARMONY can be muted when starting the engine by connecting the brown MUTE IN wire to the
ignition starter turn-on. The MUTE IN terminal can be used to enable the AUX IN input. In this case the output mute
function, set by default, will be disabled.
