Connections - Metra 95-3318B Instrucciones De Instalación

Note: Some models do not have speed sense on the data-bus. Refer to the 20-pin Gray
harness to the aftermarket radio step. If you do not have a wire populated on the factory side
of the 20-pin harness, connect this wire instead.
• Connect the Yellow RCA jack to the rearview camera input.
Note: The Rearview Camera Input is used to display the Personalization Menu and the Climate
Control status. If the aftermarket radio does not have a screen with a Rearview Camera Input,
then there will be no visualization of the Climate Controls Status or Personalization Menu. An
externally mounted screen could be substituted in this situation.
From the 3318 harness to the aftermarket radio:
• Connect the Black wire to the ground wire.
• Connect the Yellow wire to the battery wire.
For models without a BOSE sound-system:
• Cut the resistors off from the Green, Green/Black, Purple, and Purple/Black wires below the
heat shrink.
• Connect the Green wire to the left rear positive speaker output.
• Connect the Green/Black wire to the left rear negative speaker output.
• Connect the Purple wire to the right rear positive speaker output.
• Connect the Purple/Black wire to the right rear negative speaker output.
• Leave connected the 4-pin connector that has the White, White/Black, Gray, Gray/Black wires.
Note: The 4-pin to 4-pin resistor pad harness will not be used in this application.

CONNECTIONS

For models with a BOSE sound-system:
• Connect the Green wire to the left rear positive speaker output.
• Connect the Green/Black wire to the left rear negative speaker output.
• Connect the Purple wire to the right rear positive speaker output.
• Connect the Purple/Black wire to the right rear negative speaker output.
• Disconnect the 4-pin harness that has the White, White/Black, Gray, Gray/Black wires, and then connect
the supplied 4-pin to 4-pin resistor pad harness.
• Connect the Red and White RCA jacks to the audio AUX-IN on the aftermarket radio (if so equipped).
Note:
o This will allow you to retain the 3.5 AUX-IN JACK in the console.
o The 3.5 jack can only be used if it is a single AUX-IN jack.
o If the AUX-IN jack has a USB port, neither can be used.
• The Black/Yellow wire is used for OnStar level adjustment for models that do not come equipped with
steering wheel controls. See OnStar Level Adjustment for further instructions.
• Tape off and disregard the White/Red and White/Green wires, they will not be used in this application.
• The female Yellow RCA jack will connect to the Yellow RCA jack on the 20-pin Gray harness.
Note: The 4-pin black connector will not be used in this application.
Continued on the next page
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REV. 7/20/2020 INST95-3318B