Aftermarket Stereo Installation

Covers:

Step 3: Working With The Factory Amplifier (If equipped)

Overview
The premium sound system package that was offered with the Probe included an amplifier that delivered 20-watts per channel. It is located behind the right side quarter panel trim, near the B-pillar. Normally, installation kits will include a wiring harness that is used to bypass the factory amplifier. This, however, is unnecessary unless you are worried about loss of sound quality.

Option 1: Using The Amplifier
  1. Find the red/green wire on the main radio connector.
  2. Connect the red/green wire to the new stereo unit's amplifier trigger wire. If one is not available, connect it to the blue/white wire (main power).
  3. Return to Step 2 to complete the stereo installation.
Option 2: Bypassing The Amplifier
  1. Remove the trunk cover.
  2. Remove the four screws and two push tabs from the rear trunk trim. Pry the trim away from the body to disengage the retaining clips. Remove the rear trunk trim.
  3. If equipped with a subwoofer, remove the four subwoofer speaker mounting bolts. Disconnect the electrical connector and remove the subwoofer.
  1. Fold down the right rear seat and remove the three push tabs from the front, two push tabs from the rear, and two screws from the right side trunk trim.
  1. Remove the safety belt trim and remove the hidden push tab.
  1. Pry the trim away from the body to disengage the retaining clips. Disconnect the trunk lamp and remove the right side trunk trim from the vehicle.
  2. Remove the two push tabs from the quarter panel trim and pry the trim panel away from the body to disengage the retaining clips. Remove the right quarter panel trim.
  1. Disconnect the electrical connectors from the amplifier and remove the three mounting nuts. Remove the amplifier from the vehicle.
  2. Cut the connector end off both the wiring harnesses and connect the wires as shown below.
1993
Wire Function Receiver
To Amplifier
Amplifier
To Speakers
Left Front (+) Red Blue/Green
Left Front (-) Black Blue
Left Rear (+) White Light Green
Left Rear (-) Green Green/Orange
Right Front (+) Yellow Blue/Black
Right Front (-) Blue Blue/Orange
Right Rear (+) Brown Green/Yellow
Right Rear (-) Black/Yellow Green/Blue

1994-1997
Wire Function Stereo
To Amplifier
Amplifier To
Speakers
Left Front (+) Brown Blue/Green
Left Front (-) Blue/Black Blue
Left Rear (+) Purple/White Light Green
Left Rear (-) White/Red Green/Orange
Right Front (+) Green Blue/Black
Right Front (-) Blue Blue/Orange
Right Rear (+) White/Orange Green/Yellow
Right Rear (-) Yellow Green/Blue
  1. Reinstall the trim.

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