
INSTAX-MLOC740
© COPYRIGHT 2004-2013 METRA ELECTRONICS CORPORATION
1-800-221-0932 metraonline.com
REV. 11/26/13
INSTAX-MLOC740
© COPYRIGHT 2004-2013 METRA ELECTRONICS CORPORATION
1-800-221-0932 metraonline.com
REV. 11/26/13
INSTAX-MLOC740
© COPYRIGHT 2004-2013 METRA ELECTRONICS CORPORATION
1-800-221-0932 metraonline.com
REV. 11/26/13
INSTAX-MLOC740
© COPYRIGHT 2004-2013 METRA ELECTRONICS CORPORATION
1-800-221-0932 metraonline.com
REV. 11/26/13
AX-MLOC740
Installation Instructions
AX-MLOC740
Installation Instructions
AX-MLOC740
Installation Instructions
AX-MLOC740
Installation Instructions
The Line Output Converter (LOC) should be installed on a stereo’s speaker output wires
or the output wires on an OEM amplifier of up to 80 watts per channel. These wires can
be found behind the stereo in the dash, on the outside of an OEM amplifier, or on the
input terminals on the OEM speakers.
Wire color and function
The audio input wire colors are an EIA standard for car stereo applications as follows:
Note: Be sure that all audio input connections are polarized or in phase with each other.
That is, the positive output wires from the audio source need to be connected to the
corresponding positive input wires of the LOC. The same goes for the negative audio
wires. Failure to do this will result in poor bass response and low quality audio.
(Continued on other side)
Input harness
White = left front (+) input
White/Black = left front (-) input
Gray = right front + input
Gray/Black = right front (-) input
Green = left rear (+) input
Green/Black = left rear (-) input
Purple = right rear (+) input
Purple/Black = right rear (-) input
Power harness
Yellow = battery +12v input
Black = power (-) ground input
Blue = remote +12v output
Brown = reference ground (-)
The Line Output Converter (LOC) should be installed on a stereo’s speaker output wires
or the output wires on an OEM amplifier of up to 80 watts per channel. These wires can
be found behind the stereo in the dash, on the outside of an OEM amplifier, or on the
input terminals on the OEM speakers.
Wire color and function
The audio input wire colors are an EIA standard for car stereo applications as follows:
Note: Be sure that all audio input connections are polarized or in phase with each other.
That is, the positive output wires from the audio source need to be connected to the
corresponding positive input wires of the LOC. The same goes for the negative audio
wires. Failure to do this will result in poor bass response and low quality audio.
(Continued on other side)
Input harness
White = left front (+) input
White/Black = left front (-) input
Gray = right front + input
Gray/Black = right front (-) input
Green = left rear (+) input
Green/Black = left rear (-) input
Purple = right rear (+) input
Purple/Black = right rear (-) input
Power harness
Yellow = battery +12v input
Black = power (-) ground input
Blue = remote +12v output
Brown = reference ground (-)
The Line Output Converter (LOC) should be installed on a stereo’s speaker output wires
or the output wires on an OEM amplifier of up to 80 watts per channel. These wires can
be found behind the stereo in the dash, on the outside of an OEM amplifier, or on the
input terminals on the OEM speakers.
Wire color and function
The audio input wire colors are an EIA standard for car stereo applications as follows:
Note: Be sure that all audio input connections are polarized or in phase with each other.
That is, the positive output wires from the audio source need to be connected to the
corresponding positive input wires of the LOC. The same goes for the negative audio
wires. Failure to do this will result in poor bass response and low quality audio.
(Continued on other side)
Input harness
White = left front (+) input
White/Black = left front (-) input
Gray = right front + input
Gray/Black = right front (-) input
Green = left rear (+) input
Green/Black = left rear (-) input
Purple = right rear (+) input
Purple/Black = right rear (-) input
Power harness
Yellow = battery +12v input
Black = power (-) ground input
Blue = remote +12v output
Brown = reference ground (-)
The Line Output Converter (LOC) should be installed on a stereo’s speaker output wires
or the output wires on an OEM amplifier of up to 80 watts per channel. These wires can
be found behind the stereo in the dash, on the outside of an OEM amplifier, or on the
input terminals on the OEM speakers.
Wire color and function
The audio input wire colors are an EIA standard for car stereo applications as follows:
Note: Be sure that all audio input connections are polarized or in phase with each other.
That is, the positive output wires from the audio source need to be connected to the
corresponding positive input wires of the LOC. The same goes for the negative audio
wires. Failure to do this will result in poor bass response and low quality audio.
(Continued on other side)
Input harness
White = left front (+) input
White/Black = left front (-) input
Gray = right front + input
Gray/Black = right front (-) input
Green = left rear (+) input
Green/Black = left rear (-) input
Purple = right rear (+) input
Purple/Black = right rear (-) input
Power harness
Yellow = battery +12v input
Black = power (-) ground input
Blue = remote +12v output
Brown = reference ground (-)